Adhesives and sealants for transport and vehicles

Aircraft Sealant Application Solutions

Aircraft sealant solutions

Aviation sealants must maximise convenience, durability, comfort and safety. Failing to prioritise these can negatively affect the life of a plane—not to mention the lives of the people onboard! Characteristics to look for the best aeronautic sealant products for your aircraft needs are versatility, sustainability, ease-of-use, quality of flying experience, and industry compliance.

Characteristics to look for in aircraft sealant products

Versatility

A plane has countless components. Thus, there are countless needs for technical reinforcements. For example, curing times matter–a sealant can have a faster curing time. This increases convenience, but effectiveness might be compromised. Meanwhile, longer curing times are necessary when gluing larger parts of a plane, such as a wing. Also, an airplane’s various substrates should bond across multiple types of material, and in various application areas. Examples include inserts and brackets, cut-and-fold, or panel assembly. Because aircrafts go through extremes in temperature, the bonding must retain strength across the spectrum. 

Sustainability

A primary value of aircraft sealant is localized structural reinforcement. Thus, durability is paramount for success in aeronautics. If the parts of a plane fail to fit and stick together, or if components suffer from high vibration, the safety and utility of the aircraft are called into question. It is for this reason that airplane glue is a major factor in mitigating plane vibration, as well as reducing overall system costs. If the sealant is flexible and strong, vibration is minimized, maintenance requirements of the aircraft itself decrease, and product longevity increases. 

Ease-of-use

Bonding Solutions for Aircrafts
Bonding Solutions for Aircrafts.

Is the aircraft sealant easy to apply? Does it make panels easy to assemble? Does the product have a long shelf-life, and can the sealant cure with a relatively smooth finish, requiring little-to-no sanding or machining? Can one airplane sealant handle multiple jobs? These are all important questions to ask when choosing the best aerospace adhesive.

Quality of flying experience

As crucial as it is to keep costs low and effectiveness of construction high, the safety and comfort of the cabin environment is equally important. Aircraft inner acoustics can have an uncomfortable or even distracting, unsafe effect on passengers, crewmembers, or pilots. It is not just the life of the plane that is at stake but the people in it, and, by extension, the willingness to purchase a flight in the first place. Does the aerospace sealant you use fit these aims?

Industry compliance

Flame-smoke-toxicity (FST) regulations are only the beginning. All of the above factors for using the best aerospace sealant products are underscored by the need to be industry compliant across several metrics. Are FAA and EASA flammability regulations met or exceeded? What about EU REACH compliance, or Airbus regulatory codes? Does a sealant contain carcinogenic, mutagenic, or reproduction toxic substances (aka CMRs)? Smoke density and toxicity levels must be kept as low as possible, but also sealants must mitigate any risk of vertical burn. 

Aviation sealant: key types and traits

Different sealants offer different benefits. Several types of aviation sealants offer a range of solutions, namely, bonding, foaming and panel reinforcement sealants.

Bonding Sealants

Sandwich structure panels in aerospace applications have been central to aeronautic efficiency since the 1930s. Today, original equipment manufacturer (OEM) products must consider efficiency at all times. The combination of lightweight materials can carry heavy loads without losing structural integrity, while retaining impact resistance. By definition, engineered bonding sealant solutions work across multiple materials, adhering to various substrates common to the aerospace industry, such as metal, composites, and thermoplastics. By extension, the best bonding sealants have high mechanical qualities and are able to withstand the full range of temperatures to which an aircraft is subjected.

Foaming Sealants

Foam pressure-sensitive adhesives offer versatility in terms of honeycomb-core finishing operations for aircraft, be it closing out or reinforcing localized edges and splicing cores. Moreover, because foaming adhesive can be formulated in many different ways, they can be compatible with many different processing methods, be it oven, press, or autoclave. And, foaming adhesive can be made available both in the form of sheets of varying thickness, as well as extruded beads in round or square shape. The result is a wide range of expansion rates, from a fraction larger than the original state, to multiple times the size, and the compatibility to fit within various geometric parameters and pre-impregnated fiber-polymer materials, such as aircraft epoxy or phenolic resin. They cure with a smooth finish, and the innate stickiness of the foam negates any need for additional adhesive for pre-bonding.

Panel Reinforcement Sealant

Due to their hexagonal structure, honeycomb-core panels are as lightweight as aircraft interiors get. Reinforcing these panels is essential in order to apply them in strategic areas, such as edges or localized spaces that require use of inserts or metal hinges, as well as insert bonding and border enhancement. Because panels are often non-metallic, they should meet flame-retardant industry standards. Good reinforcement choices will also impart high mechanical properties upon the honeycomb, such as toughness, strength, and low fatigue. Because panel reinforcement sealant material is homogenous, it has an admirably long shelf-life. In addition, it can be applied manually as a high-viscosity paste, or in a low-viscosity state via mechanized pump. All of the above make panel reinforcement sealants easy to use, as there is no mixing or weighing of different components in order to prepare the material for automatic application.

Let us help you find the best adhesive applicator for your next project. CLICK HERE to learn more.

What is the best adhesive applicator for your industry needs?

When making your choice, consider the key traits listed above: versatility, sustainability, ease-of-use, quality of flying experience, and industry compliance. For example, some aeronautic sealant products offer the “best of both worlds” in that their normal curing times at room temperature can be accelerated at higher temperature. Other sealants are available in differing densities, or are formulated according to specific core schedules. Bonding sealants, for example, can be both tough and versatile: they are ideally offered as one- or two-component adhesives, with open time that can vary from short periods of ten or twenty minutes for immediate bonding, to as long as two hours when bonding larger parts of the plane. In short: the end-goals are usually the same, but the best aerospace sealants offer many paths to get there.

Choose the right aerospace sealant solution. Contact us!

Choosing the right aerospace sealant solution takes time and expertise. Why not reach out to our customer support team for guidance? We can help you identify the best product for you and connect you with our network of industry-leading specialists.


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blue trucks in a row finished with heavy truck and trailer bonding adhesive

Road transport benefits from heavy truck and trailer bonding adhesives

The use of adhesives in road transport vehicles, such as combination vehicles, trucks and trailers, is ever increasing. This is due to the numerous advantages these solutions offer compared to their traditional, mechanical alternatives. Next to the obvious, the heavy truck and trailer bonding adhesive systems are suitable for example for use in vehicles for healthcare and leisure. These include ambulances, caravans and campers and tractors.

Here you will find information on heavy truck structural adhesive systems, metal adhesive for trailers and truck adhesive sealants. Additionally, we will list their advantages and some products used for the most challenging applications.

Benefits beyond bond with truck and trailer bonding adhesives

In vehicle assembly innovative materials are used to make the vehicles more durable and the production process more efficient. Therefore, many production facilities choose for (structural) adhesives instead of more traditional options. The benefits brought along by road transport adhesives include:

  • Design freedom: adhesives do not hinder the design choices, they are applicable so that they do not remain visible.
  • Even stress distribution: heavy truck adhesive systems are applied by spraying, spreading the product or using dots and beads. All these methods allow for a greater surface to bear the stress than when traditional fasteners are used.
  • Material friendly: compared to fasteners like screws, these systems do not damage the materials since they need no holes.
  • Weight saving: adhesives are much lighter in weight than for instance welded bonds. This is of high importance, since the road transport industry is shifting towards lighter materials in for example truck and trailer assembly. For example heavy trailer sandwich panel bonding can greatly benefit from the right type of adhesive.
  • Visual attraction: adhesives can contribute to the visual attributes of trucks, trailers and other vehicles. They are either available in different colors or are paintable.
  • Fast and easy application: the application of these systems can be fully integrated into the production process. It also allows for automation where suitable.
  • Noise and vibration attenuation: important for the truck and trailer assembly, adhesives can absorb shocks and damp noise.
  • Fewer corrosion problems: as there is no metal to metal connection, there is no risk for galvanic action, and so corrosion risk is minimal.

Heavy truck and trailer structural adhesive applications

Adhesives for truck and trailer assembly guarantee strength, durability and elasticity in a wide variety of applications ranging from ambulances and fire engines to bulldozers, buses and touring cars. Additionally, some applications for demanding environments or purposes may require other properties such as chemical resistance and high temperature resistance.

heavy truck and trailer bonding adhesive systems used in ambulance interior
Truck and trailer bonding adhesive systems are in a crucial position for example in ambulance interiors.

The systems for road transport include, sealants, adhesives, adhesive sealants and coatings. These are common for example in the following applications:

  • Bonding and sealing: the sealant, adhesives and truck adhesive sealants are common in creating bonds and seals for windows. The seals and bonds are suitable for windows that consist of mineral glass, polycarbonate or other plastics.
  • Truck structural bonding: many adhesives are suitable for structural bonding of panels, roofing, bodywork and floor elements. The truck and trailer panel adhesive bonding systems include MMA adhesive, which has a unique cure profile.
  • Sealing: sealants play a crucial part in sealing welds, bodywork, chassis parts, panels and interior parts as well as roofing and flooring. Especially MS polymers have an impressive track record in sealing dissimilar materials in trucks, trailers and other road transport vehicles.
  • Coating: floor elements of road transport vehicles benefit from an appropriate floor coating. This can be used in combination with a suitable primer to guarantee most durable results.

Road transport adhesives for a wide range of materials

These systems are generally versatile in use, for they provide sufficient adhesion to materials such as glass fiber reinforced polyester, powder coatings, polycarbonates, PMMA, composite materials as well as glass and metal.

The adhesives for truck and trailer assembly also work for materials which are usually difficult to seal or bond. For instance polypropylene, which has low surface tension and is therefore tricky to glue or seal. However, the use of polypropylene in the vehicle industry is increasing due to its properties such as light weight. Therefore, special products are required.

In case you have an application involving bonding polypropylene or other challenging material, contact us for consultation and suitable products.

Certification of heavy truck and trailer bonding adhesive systems

As road transport includes several types of vehicles suitable for specific environments and purposes, the product certification and standardization hold a paramount position when selecting adhesives. Below you can find some relevant certificates for adhesives for road transport.

  • WheelMark indicates durability in harsh environments. Some adhesive and sealant products for road transport can be certified according to the Maritime Equipment Directive set by the EU. This is due to the fact that similar products are durable enough for use also in ship building and repair.
  • ISEGA assures that heavy truck and trailer bonding adhesives are safe to use in the preparation, processing, treatment, packing, transport and distribution of food. These products must have the lowest risk of contamination, and other hazards. Therefore, the ISEGA certification, together with HACCP, is crucial especially for sealing and bonding products for vehicles that transport food.
  • DNV GL provides functional safety for road transport. DNV GL is a certification body that assesses, among others, products for road transport according to several European and international standards. For road transport these include reliability, availability, maintainability and safety, software and system safety. DNV GL certified sealants and adhesives are up to standards.
  • FMVSS 212 stands for Federal Motor Vehicle Safety Standard. Windshield mounting assesses the strength and durability of windshield (and window) mounting in crash situations. As the windshields and windows in road transport vehicles are often glued and sealed using sealants and adhesives, their behavior in such situations is tested.

Note that similar certificates are also relevant for railway vehicles due to their similar tasks and operating environments.   

Expert consultancy for road transport bonding

Looking for a suitable adhesive for your road transport vehicles, trucks and trailers? You have come to the right place: contact us for information on systems or training, consultancy on the right product or requesting a quote for a specific adhesive system. Our specialists are happy to share their experience and expertise in order to guarantee success for your project.


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adhesives and sealants for buses beeing applied during assembly

Adhesives and sealants for buses replace fasteners

The bus manufacturing industry is currently shifting away from mechanical fasteners and replacing them by adhesives and sealants for buses. The shift towards adhesives and sealants in bus assembly processes is encouraged by the need for increased sustainability, use of composite materials, aerodynamic designs and safety regulations. Buses consume annually some 4.5 million liters (1.2 million gallons) of adhesive alone. The consumption of sealants is also rather high, and ever-increasing. Adhesives and sealants are used for example in bus roof sealing and bonding, floor sealing, as direct glazing adhesive systems as well as in interior panel and trim bonding. 

Here you will find everything you need to know about adhesives and sealants used in different stages of bus manufacturing.

Stronger, lighter safer & faster buses with adhesives and sealants

Adhesives and sealants for buses are designed to meet the requirements of making the process and products stronger, safer, faster and lighter.

  • Stronger: adhesives and sealants increase the durability of buses as they prevent corrosion unlike mechanical fasteners which are prone to cause galvanic corrosion.
  • Lighter: the use of adhesives and sealants instead of mechanical fasteners can lead to up to 80 kg weight reduction. Additionally, adhesives for buses make it possible to bond indifferent materials together without needing to worry about damaging either of the materials.
  • Safer: some adhesives and sealants are designed to damp impact, which makes them improve the buses´ crash test performance. These systems are found especially in interior panel and trim bonding, and as direct glazing adhesive. Also fire retardant adhesives exist contributing to fire safety on board. The fire retardant adhesives used in buses have zero contribution to spreading flames.
  • Faster: not only allow adhesives and sealants for more aerodynamic designs, but they are also faster to process, which reduces the production time of buses.

Bus adhesive and sealant applications from direct glazing to interior trim bonding

As chemical seals and bonds are taking over in the bus industry, the number of applications is continuously increasing. It is not only about making windows watertight with a glazing adhesive but also keeping the body structure together. The adhesive and sealant applications do not solely focus on the frame, interior trim bonding and exterior of the buses, but also contribute to the mechanisms under the hood including engine components and batteries. Below you will find the more specific applications of adhesives and sealants for buses.

Bus body structure bonding

During the assembly of bus body structures, several adhesives and sealants are used in order to prevent corrosion, water ingress and standing water. They also contribute to comfort during long bus rides.

Possible adhesive and sealant solutions

The bonds and seals in the body structure of buses can be realized by various products depending on the application. There are easy to process, one component sealants such as MS polymers which are often green options, as they do not contain harmful isocyanates nor solvents, and their VOC (volatile organic compound) value is close to zero or zero. The growing demand for MS polymers is based on the need for environmentally friendly products. Discover the possibilities of the best MS polymer systems.

Next to MS polymers, the adhesives for body structures are often hybrids of polyurethane and epoxy, and they cure by adding heat.

Benefits of using adhesives and sealants

  • Smooth surface appearance and less rework
  • Increased comfort due to dampening sound and vibration
  • Bonding dissimilar materials increasing design freedom
  • Reduced risk of corrosion

Interior trim bonding

The development of interior design of buses has led to the use of ever-growing mix of plastics and fabrics which require durable and environmentally friendly bonding solutions. Therefore, it is important that adhesives for bus interior trim bonding improve appearance and contribute to comfort.

interior trim of a bus with adhesives for buses
Hot melt adhesives are the most common solution for bus interior trim bonding.

Possible adhesive and sealant solutions

Standards set for bus interior panel and trim bonding encourage the manufacturers to choose for green solutions with as little environmental impact as possible. Therefore, the most common adhesive for bus interiors is hot melt which appears in a solid phase in room temperature, and softens when heated. These adhesives allow for extremely fast processing.

Benefits of using adhesives and sealants

  • Environmentally friendly bonding solutions
  • Improved appearance, no visible fixings
  • Fast production process due to application benefits

Bus floor sealing, side panels, luggage doors and hatches

Bus operators expect outstanding durability from their vehicle regardless of driving conditions. Therefore, the bus must be safe in possible crash situations and it should not degrade due to harsh climatic conditions.

Possible adhesive and sealant solutions

interior trims finished with sealants and adhesives for buses
Elastic polyurethane adhesives and sealants are commonly used to finish bus floors.

For sealing floors, side panels, luggage doors and hatches MS polymers are a common choice as they form watertight seals which are resistant to a wide variety of chemicals. However, the bonding of these applications is often realized with elastic polyurethane adhesives which cure fast and exist as one and two component systems. Also MMA adhesives are common especially in bonding interior panels. Similar solutions are applicable to train interiors.

Benefits of using adhesives and sealants

  • Increased impact safety in the event of a crash
  • Improved comfort due to damping sounds and vibration
  • Better looks as there are no visible fixings
  • Resistance against extreme temperature conditions

Bus roof sealing and bonding

The roof is one of the most important parts of a bus, and the design still is one of the greatest challenges for bus manufacturers. Even though adhesives and sealants give more design freedom and ease the challenge, factors such as high temperature development, thermal expansion coefficients and structural integrity must be taken into account when choosing the bonding and sealing materials.

Note that similar systems are also suitable for gluing antennas and receivers on bus roofs.

Possible adhesive and sealant solutions

Bus roof sealing and bonding require flexible solutions. Therefore, they must not be sensitive to whatever the environment might throw at the roof. The bus roof sealant and adhesive systems are often polyurethane based or hybrid systems. They exist as one and 2 component systems which allow for fast curing, speeding up the production process.

Benefits of using adhesives and sealants

  • Longevity and durability
  • Improved corrosion resistance
  • Improved body stability and reduced fuel consumption due to lighter weight
  • Reduced weight due to the elimination of mechanical fasteners
  • Dampening sound and vibration

Benefits of using adhesives and sealants

  • Increased impact safety in the event of a crash
  • Improved comfort due to damping sounds and vibration
  • Better looks as there are no visible fixings
  • Resistance against xtreme temperature conditions

Front and rear mask adhesives and sealants

The front and rear masks contribute to the aerodynamic design of buses. The use of adhesives and sealants instead of mechanical fasteners allows for more aerodynamic shapes and so contributes to reduced fuel consumption.

Possible adhesive and sealant solutions

Adhesives and sealants for front and rear masks of buses are usually thermoplastics which can be shaped when not completely cured. The solutions include polyurethane and hybrid systems which cure fast allowing for shorter processing times. These adhesive and sealant systems are usually one component solutions, which also makes the processing less laborious.

Benefits of using adhesives and sealants

  • Design freedom due to thermoplastics
  • Reduced weight due to elimination of mechanical fasteners
  • Protection against water and moisture ingress
  • Improved body stability and reduced fuel consumption

Bus direct glazing adhesive and sealant solutions

Glazing adhesives and joint sealants are the oldest chemical sealing and bonding products used in bus assembly lines. They are suitable for sealing and bonding direct glazing application as they provide fast curing times and high initial strength as well as contribute to aerodynamic design and stability of the vehicle. As the glazing of buses involves large and heavy surfaces, the adhesive must be chosen carefully opting for the highest quality. In some cases the direct glazing adhesive require sealing using an appropriate sealant system. Gain more information on the best glazing adhesives and sealants!

Possible adhesive and sealant solutions

direct glazing adhesives and sealants for buses
Direct glazing adhesive and sealant systems are realized with special solutions for buses.

The range of adhesives and joint sealants for direct glazing of buses is broad, and the product should be chosen based on the production process and desired application method. The possible products included MS polymers, silicone sealants and polyurethane based adhesives.

Benefits of using adhesives and sealants

  • Simplification of production processes
  • Cost reduction
  • Shorter processing time due to fast curing products
  • Automated application is possible
  • Protection against water and moisture ingress
  • Improved aerodynamics

Improve efficiency and choose the right products for buses

Choosing the right adhesives and sealants for buses is crucial due to the fact that they contribute to the overall durability, safety, weight and comfort of the vehicle. A wrong choice, however, can make buses degrade faster. Therefore, one should always consider consulting an adhesives and sealants expert before making the final choice.

We at AdhesivePlatform are dedicated to help you find the right adhesives and sealants for buses you manufacture. Feel free to contact us for more information about the best solutions, consultancy and finding the solutions your buses need!


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adhesives and sealants for agricultural machinery on green harvester and tractor

Agricultural and construction machinery adhesive increases efficiency

Heavy machinery in agriculture and construction must be safe, reliable and durable with a hint of comfort. In order to meet the requirements, special construction and agricultural machinery adhesive systems replace welded seams and conventional fasteners. Agricultural and construction machinery adhesive solutions enable safer, stronger and quieter equipment and new, improved designs. Here you can find the advantages of bonding, and more specific adhesive applications in construction and agricultural machinery.

Construction and agricultural machinery adhesive benefits

Not only enable agricultural machinery adhesives stronger and quieter equipment, but have more advantages benefitting assembly lines and finished products. Agricultural and construction machinery adhesive systems are used for example in vehicles such as tractors, backhoes, skid steers and combines, cabins and engines, subcomponents such as gearboxes as well as attachments including mowers, harrows, seed drills and balers.

The advantages provided by construction and agricultural machinery adhesive systems include the following.

  • Improving design: using adhesives instead of mechanical means of bonding allows for greater design freedom and improved aerodynamics. This contributes to lower fuel consumption.
  • Optimizing machinery assembly: construction machinery adhesive systems are applicable in several ways meaning that it is possible to find the one that fits your assembly line the best. They are usually faster to apply than mechanical alternatives and their curing time can be reduced to minimum depending on the system.
  • Cutting costs: adhesives generally reduce the production costs as they are cheaper to purchase and apply than the mechanical alternatives. They also reduce the need for expensive repairs saving the farmer money, which makes the product more attractive.
  • Increasing durability: agricultural machinery adhesives result in strong, low maintenance bonds. They also reduce the risk for corrosion by forming a seam between metal surfaces.
  • Reducing weight: as adhesives are remarkably lighter in weight than mechanical, usually metal, fasteners, they reduce the vehicle´s total weight, which leads to lowered fuel consumption. There are also super fast curing solutions which are even lighter than traditional adhesives.
  • Enhancing safety: some bonding systems for agricultural vehicles and construction machinery contribute to safety by improving the vehicle’s performance in crash situations.

Different applications of adhesives for agricultural machinery

In the manufacturing of construction and agricultural vehicles, adhesives play an important role in numerous applications throughout the assembly line from exterior panels to engine components and interior trim. Contact us in case you need any assistance in choosing the right adhesives for your machinery assembly line.

adhesives for tractors in direct glazing
Direct glazing and windscreens are among the oldest applications of adhesives for agricultural machinery.

Adhesives for vehicle windows

One of the oldest adhesive applications in agricultural and construction machinery are direct glazing and windscreens. The bonds increase safety in crash situations, prevent galvanic corrosion and ease the production process.

The products for bonding vehicle windows include MS polymers and polyurethanes. They exist as cold, warm and hot applied products which allow for manual and automated processes. In general the application and curing processes are fast, but they can be made even faster by choosing for super fast curing solutions which do not require a primer.

Agricultural and construction machinery cabin bonding

Before painting the cabins, adhesives are applied to the framework. These contribute to safety with their impact resistance, prevent corrosion of metal parts, reduce the total weight of the vehicle, damp noise and vibration and allow for desired looks as they are paintable. They also form a perfect substrate for the paint: most of the agricultural and construction machinery adhesive solutions are heat resistant and enable later e-coat or powder coating.

The adhesives for cabin bonding of agricultural machinery exist as one and two component systems. Most often they are polyurethane epoxy hybrids which cure fast when heat is applied. They also allow for automated application processes and so ease the assembly. The cabin bonding solutions also exist as environmentally friendly solutions which do not contain solvents or PVC. These are common also in public transportation vehicles such as buses.

Trim shop adhesives for heavy machinery

Adhesives for the trim shop often come with sealing properties. They also provide design freedom and possibilities for aerodynamic design. They are paintable, impact resistant and damp noise and vibration. Additionally, they allow for efficient temperature control by forming an airtight seal which keeps the cabin temperature as wished.

Adhesives and sealants for agricultural machinery used in tractor exterior
Construction and agricultural machinery adhesive systems for doors and closures guarantee quality equal to that of the cabin.

Trim shop adhesives for agricultural machinery exist as thermosetting and thermoplastic materials. They are usually one and two component polyurethanes as well as 2K acrylic solutions. The same systems are suitable as construction machinery adhesive solutions as well as rail vehicles.

Structural bonding for doors and closures

The doors, hood and other closures of construction and agricultural vehicles must meet the same requirements as the cabin. Therefore, adhesives are used to improve crash performance and provide strong bonds (and seals). Additionally, these bonds are often heat resistant to the point that the parts can be e-coated or powder coated.

Structural bonding systems for doors and closures often come as flexible 2K polyurethanes, easy-to-apply and flexible 1K polyurethanes, low preparation 2K acrylic systems and polyurethane hybrids which are strong, flexible and do not require much surface preparation.

Types of agricultural and construction machinery adhesive systems

In agricultural machinery there are many types of bonds which improve reliability and durability of the finished products. Most of the adhesives within the industry are used for either reducing the use of welds and fasteners or protecting and securing flanged, threaded and cylindrical assemblies.

Weld and fastener reduction

One of the main purposes of agricultural machinery adhesive systems is to reduce the use of welds and fasteners; the same counts for construction machinery adhesive systems. Replacing mechanical bonds results in lighter vehicle weight which contributes to lower fuel consumption. The reduction of metal to metal contact reduces corrosion and so increases the overall durability and reliability of the vehicles. Moreover, adhesives allow for design freedom and more appealing aesthetics as they make no holes and the result is uniform, even paintable.
An adhesive that is increasing its popularity in vehicle assembly is methyl methacrylate, which bonds dissimilar materials and has a unique cure profile. Another innovative adhesive is one that relies on MS polymer technology.

Protecting and securing flanged, threaded & cylindrical assemblies

Adhesives play also a role in protecting and securing flanged, threaded and cylindrical assemblies as threadlocking, thread sealing, gasketing and retaining. This enables manufacturers to increase product reliability and reduce downtime and need for later maintenance.

  • Threadlocking: anaerobic (in the absence of air) curing, thermosetting threadlocking solutions are applied to threads of fasteners preventing loosening.
  • Thread sealing: anaerobic curing thread sealing systems fill the space between threaded parts forming an instant low pressure seal which prevents liquid and gas leakages.
  • Gasketing: self-forming gaskets form the perfect seal between components providing maximum face-to-face contact and so reducing the risk for flange face corrosion.
  • Retaining: anaerobic retaining compounds secure bearings, bushings and cylindrical parts making the assemblies stronger and reducing the need for maintenance and expensive repair parts.

Looking for suitable adhesives for agricultural or construction machinery?

The right construction and agricultural machinery adhesive systems are dependent on the manufacturing process, assembly line and the desired looks and performance of the finished product. Therefore, it is not always an easy choice to make. Fortunately, our specialists are always happy to help you by assisting in the process, making product suggestions and bringing you in touch with market-leading suppliers. Simply click on the contact button below and let us know more about your bonding needs.


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polyurea adhesives used as an alternative to polyurethane

Polyurea adhesive challenges traditional bonding systems in vehicle assembly

In vehicle assembly, fast curing structural adhesive systems are crucial as they increase the production speed and efficiency of the process as well as providing the finished vehicles with several benefits. Lately, the automotive industry has been shaken by the entry of a new, revolutionary system – polyurea adhesive – which is likely to become a wanted alternative to polyurethane and other structural adhesives, which vehicle assembly lines currently rely on. The new polyurea adhesive is elastic and cures extremely fast in room temperature, contributes to significant vehicle weight reduction and remarkably increases overall efficiency while reducing operational costs.

What makes polyurea adhesive unique and even more appealing to the automotive industry is its elasticity and ability to bond dissimilar materials, including lightweight composites as well as its suitability for manual and fully automated application depending on the available equipment and the type of adhesive formulation.

Vehicle assembly applications for polyurea adhesive

Although polyurea adhesive is something new and revolutionary, polyurea chemistry has been known for longer in the form of fast curing coatings. Now, that the chemistry has been modified to serve as fast curing structural adhesives, polyurea has got many new applications. In vehicle assembly these include for example the following.

sandwich material reinforced with new fast curing structural adhesive
The new polyurea adhesive is suitable for securing fasteners.
  • Structural bonding of fasteners on molds
    The fast curing polyurea adhesive allows for applying fasteners to thin walled components. This enables maximum design freedom and eliminates the chance for material distortion.
  • Bonding lightweight components
    Local reinforcement and bonding of lightweight materials is possible with the new adhesive as it can be automatically injected into the materials, strengthening them and allowing for fasteners to be attached, increasing their shock absorption ability and contributing to weight and cost optimization.
  • Local reinforcement of PU foam
    For reinforcement purposes, the fast curing structural adhesive can be injected into porous materials such as PU foam. The foam absorbs the polyurea glue which cures within 2-4 seconds. This casting process eliminates the need for hard parts before the foaming process. The adhesive is also suitable for fiberboard reinforcement in furniture making.

In reality, the range of possible applications is much wider, as the polyurea adhesive can be applied through manual and automatic equipment or even injection. Contact us for more information about the possibilities!

Benefits that make polyurea adhesive an alternative to polyurethane

The polyurea and polyurethane share some benefits such as curing in challenging environments, suitability to numerous materials, watertight nature, wide operating temperature range and stress absorption and vibration damping. However, some of these properties are enhanced in the new polyurea structural adhesive, and a range of other benefits is brought along.

foam injected with polyurea adhesive
Not only is the fast curing structural adhesive an alternative polyurethane but also allows for new applications such as reinforcing foam by injection.
  • Fast curing: one of the most important advantages of polyurea adhesive is its ability to cure in no more than 2 seconds. This shortens cycle times and reduces costs.
  • Lower energy consumption: as the adhesive is able to cure at room temperature in a matter of seconds, no additional heat source is needed, which reduces the energy consumption of the process.
  • One adhesive for many applications and methods: the polyurea adhesive is versatile as it can be a part of fully automated application machinery or applied manually using a cartridge. Also injection is possible.
  • Durability and comfort of vehicles: the elasticity of the fast curing structural adhesive guarantees durable bonds which are not affected by stress and vibration. The adhesive even damps noise and vibration.
  • Heat resistance: contributing to longevity and a broad range of application possibilities, polyurea is resistant to extreme temperatures: the operating temperature range is between -40°C and 200°C, the maximum exceeding the temperature given for polyurethane.
  • Supports the use of lightweight materials: as polyurea adhesive bonds dissimilar materials including different composites, and strengthens weak materials a wider range of lightweight materials and their applications can be introduced to vehicle assembly.
  • Reduced costs: the new adhesive reduces costs in different ways; material costs are lower as less adhesive is needed to guarantee strong bonds: compared to polyurethane, the amount of adhesive needed can be reduced by up to 50%. Labor costs are reduced, too, since the polyurea based adhesive cures fast and allows for automation. Finally, increased efficiency and shorter cycle times decrease the production costs per vehicle.
  • Modification: even though the adhesive is based on a specific chemistry, it is not just one type of adhesive, but it can be modified in terms of elasticity, adhesion profile and final strength.

Curious about the details of this fast curing structural adhesive?

In case this new, revolutionary fast curing structural adhesive has made you curious about the opportunities it could offer your processes, do not hesitate to contact us. We are happy to provide you with more information about polyurea adhesives, connect any enquiries with the supplier as well as discuss training and implementation support.

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body panel adhesive in a blue car

Body panel adhesive for vehicle repairs and assembly

The development of adhesive technology allows for use of ever-smarter body panel adhesive solutions in vehicle assembly and repairs. The auto body panel adhesive systems are used throughout the transport and vehicles sector, the automotive industry being the largest user of this adhesive. The automotive panel adhesive, however, does not differ from the body panel glue applied to other vehicles in public transportation (trains and buses), road transport (trucks, ambulances, etc.) as well as heavy construction and agricultural machinery. The use of panel bond adhesive solutions remarkably speeds up assembly lines and allows for fast repairs especially there, where welded bonds are not possible or not desired. Transport vehicle and automotive body panel adhesive systems also replace conventional mechanical fasteners, and bring along multiple benefits.

The range of auto body panel adhesive systems is rather broad meaning that there are plenty of adhesives that meet the strict requirements set for the industry. They can also be tailored to fit the needs of specific vehicles and assembly lines possibly resulting in reduced waste and minimum use of the automotive body adhesive without compromising on the bond quality.

 Benefits of using auto body panel adhesive

The use of body panel adhesive systems is increasing in both vehicle production and repairs. In both types of applications they bring along many advantages, which encourages the shift from mechanical fasteners and welds towards auto body panel glue.

Assembly line adhesive makes vehicles lighter, faster and stronger

The assembly line adhesive systems are known for the following advantages:

  • Lightweight: auto body panel adhesive systems are generally lighter than welds and mechanical fasteners: they can remarkably reduce the weight of a vehicle, which results in reduced fuel consumption and emissions. For example, in buses, the use of adhesives can result in weight reduction of 80 kg.
  • Anti-corrosive: welded bonds and fasteners tend to rust at some point of vehicles´ lifespan. Automotive body panel adhesive solutions, like other glues, are not corrosive. In some cases they can even prevent corrosion functioning as a barrier between metal panels. Body panel adhesives contribute to increased durability of vehicles.
  • Noise and vibration cancelling: automotive body adhesives effectively cancel vibration and noise caused by engines and uneven road surfaces. Due to the flexible nature of these car body adhesives, they are not affected by vibration unlike mechanical fasteners which loosen or break more easily. This is beneficial especially in public transport vehicles such as trains.
  • Bonding dissimilar materials: the fact that body panel glue systems bond dissimilar materials, makes automotive panel adhesive the most used as the use of composite materials has been significantly increasing. Also other vehicles benefit from the ability to bond metals to composite materials.
  • Efficiency: cost and time efficiency are strongly associated with automotive body adhesive. For vehicle assembly, car body adhesives are cheaper than fasteners as a material, and regarding application process. The application of body panel adhesives can be fully automated saving time and money.

Get to know more advantages and possible solutions for your assembly line or garage by contacting us.

Car body glue enables tricky repairs

Also in vehicle repairs, automotive body panel adhesive systems have proven to be beneficial. The following benefits come along with body adhesives in repair applications:

  • Speedy repairs: body panel glues are common in garages and workshops as they allow for fast repairs. They can be applied more quickly than mechanical fasteners, and do not require specially trained personnel for application unlike welding. Due to this construction machinery and road transport vehicles can return to service faster.
  • Repairing hard to reach areas: sometimes welding or fasteners are not an option due to the tricky location of the spot that requires repairing. That is where automotive body panel adhesive systems come into picture: depending on the application method, special glues can reach almost any spot that needs to be repaired.
  • Repairs between dissimilar materials: another reason for welding not being an option is dissimilarity of materials. In vehicle manufacturing more and more composite materials are used, meaning that repairs of these materials has also become more frequent. Car panel adhesive systems are a suitable option regardless of the material combination.

Automotive panel adhesive applications in vehicle assembly

In vehicle assembly, car body glue is used to reduce the weight of the vehicles, give them increased protection from corrosion and speed up the production process. They are suitable for applications like body skins, roof skins and quarter panels. The most common applications of body panel glue in assembly include:

  • Weatherstrip bonding: waterstripping is the way to protect vehicle interiors from the environment. The body panel adhesives used for weatherstripping must remain flexible also after curing to be able to withstand the vibration of the vehicle. They also must retain their properties in extreme temperatures and temperature fluctuation.
  • Watershield bonding: Watershield is the film bonded directly to the vehicle´s door protecting electrical components from damage by water and moisture. Automotive body panel adhesives for watershield bonding exist as pre-applied and direct applied systems.
hot melt body panel adhesive protecting electronics in a vehicle door

Body panel adhesive is used for example for watershield which protects the electronics from water damage.

Curious for more? Send us a message to find out more beneficial panel bond adhesive systems on a wide variety of vehicles.

Car body panel glue technologies

The aforementioned applications can be carried out using several adhesive technologies. These can roughly be divided into solvent based, waterborne and hot melt adhesives. The most suitable auto body panel glue is determined by the assembly line and the product.

  • Hot melt: 100% solid, environmentally friendly solutions applied using heat. These do not contain any solvents and result in minimum waste, and so are ideal automotive body panel adhesive systems.
  • Waterborne: ever-developing liquid adhesives that do not contain any toxic solvents. Car body glue which is safe and fast to work with.
  • Solvent based: liquid auto panel adhesives, generally considered stronger than their water based alternatives but have higher VOC values requiring safety measures to be taken.

Materials used in car body panel glues include for example MMA, polyurethane and its alternatives, rubber silicone and MS polymers. The hot melt panel bond adhesive systems are usually butyl-based or hot melt pressure sensitive adhesives (HMPSA).

Looking for an assembly line adhesive or car body panel adhesive for repairs?

Automotive body panel adhesives clearly come with many benefits, but which one is the right one for your assembly line, workshop or garage? If in doubt or curious for more information, do not hesitate to contact us. Our experts are determined to help you find the right adhesive system for your processes and products.


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car seats with reactive hot melt adhesives

Increasing demand for reactive hot melt adhesives PUR and POR in automotive industry

The need for reactive hot melt adhesives has never been greater thanks to their extraordinary strength and versatility. The reactive hot melts refer to polyurethane (PUR) hot melts and silane modified polyolefin (POR) adhesives. Both of the reactive hot melt adhesive types are used throughout industries including automotive, electronics and construction. In this article we focus on the automotive industry including assembly and repairs.

Two-stage curing in reactive adhesive technology

Reactive hot melt adhesives are also known as moisture curing hot melts. This means that the adhesives reach their final cure as they react with moisture in the air and the substrate. These adhesives have a two-stage curing profile which divides the process into physical and chemical curing.

  1. Physical setting: shortly after the adhesive has been applied the physical setting takes place. This allows the adhesive to reach a stage of hardness which allows for further processing and transport.
  2. Chemical crosslinking: the second stage of curing may take from hours to days depending on the adhesive type and the moisture present in the environment. During chemical crosslinking the hot melt adhesives lose their thermoplastic properties and become thermosets, which means that high heat does not affect them.

The unique curing process makes PUR and POR adhesives a desired solution for many applications within the automotive industry. They can be used for example in making the seats, gluing carpets, bonding foam based materials, fixing cables, attaching door sill protectors as well as bonding emblems and gear knobs. These are not the only applications for reactive hot melt adhesives: the range of possibilities is nearly limitless. Contact us to discover whether PUR or POR is the solution for your application.

Benefits of reactive hot melt adhesives in vehicle assembly

adhesive dispenser for reactive hot melt adhesives
Reactive hot melt adhesives are easy to apply as long as the right equipment is used.

The reactive hot melt adhesives are not the most inexpensive, but they are versatile in use and deliver high quality bonds even on substrates that have been considered “un-glue-able”. The adhesives are rather light, which contributes to the weight reduction of vehicles. They also bond lightweight materials that are crucial in lighter weight vehicles. The application of these adhesives is also rather easy as long as the right type of hot melt dispenser is used.

The two types, polyurethane and silane modified polyolefin based systems, both have their own unique advantages.

What makes PUR hot melt adhesives special

Polyurethane hot melt adhesives have several benefits which combined make up a very unique adhesive. The beneficial properties include the following.

  • Heat resistance: crucial for both finished products and further processing, PUR hot melts are heat resistant once they have reached the final cure. Heat resistance is not a common property for hot melt adhesives.
  • Low temperature flexibility: common for polyurethane adhesives, also the reactive hot melts remain flexible in low temperatures. Depending on the application this can be a great advantage.
  • Extraordinary strength: of all the hot melt adhesives, PUR is the one that forms the strongest bonds.
  • Excellent adhesion: PUR hot melt adhesives adhere well to a wide range of substrates including lightweight materials that are increasingly used in vehicle assembly.
  • Solvent resistance: polyurethane hot melt adhesives are known for their excellent solvent resistance which opens up more application possibilities.

Share your specifications with us and find out whether PUR hot melt solves your bonding problems.

When to use POR adhesives

PUR hot melt adhesives are versatile and have a unique set of characteristics which fits many applications. However, some applications that require reactive hot melt adhesives cannot be realized with PUR: this is when POR comes into picture. The silane modified polyolefin based adhesives share many advantages with polyurethane but they also adhere to the surfaces that are a challenge for PUR. Untreated and non-polar surfaces such as polypropylene (PP), which is common in vehicle assembly, can be easily bonded with POR adhesives.

Additionally, even though the POR hot melts do not reach the strength of PUR, they form very durable bonds which can be considered more environmentally friendly than those made with other reactive hot melt adhesives. Typical for modified silane based adhesives, POR does not contain isocyanates. This also means that the adhesives are not labelled as hazardous goods. In some cases this may be the deciding factor when choosing a hot melt adhesive.

Looking for POR or PUR hot melt adhesives?

In case you need any assistance in deciding about reactive hot melt adhesives or are looking for adhesive systems for specific applications, contact us! Our experts are determined to find you the most fitting adhesive solution.

Get connected with a reactive hot melt adhesive manufacturer with a proven track record of high quality bonding solutions and matching application equipment. Additional benefits offered by the manufacturer include:

  • Laboratory testing of adhesives and equipment
  • On site advice and fast product delivery
  • Support in case of malfunction and repair services by well trained technicians
  • Support in further development towards better bonding
  • Multilingual service

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black high peel strength adhesive spray

Vehicle industry benefits from high peel strength adhesive

For some time now, the automotive and transport industries have been adopting more and more adhesive technologies in order to realize vehicles that meet today´s requirements. One of the newer inventions introduces a new approach to acrylic structural adhesives: this high peel strength adhesive has also high elongation, low odor and it is prone to minimum shrinkage.

This high peel strength adhesive with exceptional elongation is based on acrylic adhesive technology, however, it takes the chemistry further and creates a unique combination of properties. This set of properties is especially appealing to vehicle manufacturing from cars and buses to trains and trucks as it supports the use of lightweight materials such as plastic and composite but is also applicable on metals.

High peel strength adhesive based on methyl methacrylate – but better

high peel strength adhesive applied in automotive industry
The high peel strength adhesive is based on MMA chemistry, but takes it step further by adding a unique set of properties.

The high peel strength adhesive uses similar technology to that of methyl methacrylate adhesives (MMA). Nevertheless, it takes the chemistry a step further and offers a unique set of properties. Compared to regular acrylic structural adhesives, the innovative adhesive has optimized open and curing time which enable greater production efficiency.

This adhesive also beats the regular MMA in peel strength and elongation. Even though peel resistance of adhesives is nothing new, it becomes exciting when it is combined with high elongation. A pair of characteristics that is rarely found in one adhesive.

Long term benefits with acrylic structural adhesive

Next to the couple of advantages over regular methyl methacrylate, the high peel strength adhesive comes with more benefits which can positively influence the production on the long run.

  • Lightweight vehicles: the acrylic high peel strength adhesive allows for lightweight vehicle production as it is lighter than fasteners and welds, and bonds lightweight materials such as aluminum, (thermo)plastics and different composite materials. The adhesive can also replace welded bonds between metals.
  • User friendliness: this adhesive is use friendly in many areas: it can be applied after minimum surface preparation and without a primer, unlike other MMA´s it has very low odor and it also changes color to indicate the stage of cure.
    Increased efficiency: rather fast curing (8 to 11 minutes) together with the optimized working time and curing time ratio this adhesive can be applied keeping the cycle times short which leads to higher efficiency than what could be achieved with other acrylic adhesives.
  • Versatile application possibilities: the adhesive is suitable for both manual and automated applications. As the focus has been laid on the rheology of each component, a manual gun can be used. On the other hand the optimized open and curing times allow for process automation.
  • Unique technical properties for specific applications: the combination of exceptional peel resistance (14 N/mm) and high elongation (about 90%) alone make the adhesive unique. However, it has other characteristics which make it suitable for specified applications: extremely low shrinkage, sag resistance and not boiling when filling large gaps make the high peel strength adhesive ideal for large composite substrates.
  • Product quality: this acrylic adhesive also has an impact on the quality of the vehicles: due to its flexibility it absorbs shocks and damps vibration, which increases comfort of the finished products. Next to that, the adhesive also contributes to the aesthetic aspects of quality: it has a very low read through, which means that it is a desired solution for visible applications especially in the automotive industry.

Need high peel strength adhesive?

Acrylic adhesives are very common in the transport and automotive industries and the range of available solutions can be frustratingly broad. Whether you are looking for a regular MMA solution or a more specific system such as high peel strength adhesive, do not hesitate to contact us. Our experts are happy to help you find the adhesive your products and process deserve. Hit the button below and get in touch!


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Windshield adhesive pictured from the inside of a car

Windshield adhesive has been bonding for decades

Windshield adhesive is among the oldest bonding applications known to the automotive industry. The initial purpose of windshield adhesives was to keep vehicles´ windshield in place but nowadays they do much more. Similar adhesives are also applicable to other windows and direct glazing of a wide variety of vehicles.

Adhesives applied to and around windscreens support and improve the stability of the vehicles as well as contribute to safety in the event of crash by making sure the windshield does not detach from the frame. Additionally, the adhesives are environmentally friendly and they result in faster processes in both OEM and aftermarket applications.

Types of adhesives for windshield bonding

Polyurethane and silicone are traditional means of windshield bonding and sealing. However, the technological development now allows for smarter adhesive solutions such as silyl modified polymers and modified silane polymers. These are slowly replacing windshield silicone adhesive systems and polyurethane-based solutions.

For cars, an adhesive provides sufficient windshield bonding and sealing, but larger vehicles such as buses and agricultural machinery may require an additional sealant to protect the bond.

Silyl modified polymer windshield adhesives

Silyl modified polymer windshield adhesives exist as one and two component systems which are both easy to apply with the right equipment. They do not contain any solvents, isocyanates, halogens or silicones, which reduces their VOC close to zero.

Next to fast curing, the ultimate advantage of these windscreen adhesive systems is that they do not require a primer. This reduces the application time and eliminates costs of surface preparation.

frozen windshield with windscreen adhesives
Windshield adhesive must endure changing weather and retain their flexibility at all times.

Modified silane polymer windscreen adhesive systems

When one solution for multiple substrates is sought, modified silane polymer adhesives are a considerable option. They adhere well to materials such as wood, plastic, metal and composite materials. MS polymers are also extremely resistant to the elements and remain flexible at all times, which is beneficial to all kinds of glazing in vehicles.

Modified silane polymers are common in windscreen adhesive systems because they combine beneficial properties of other materials such as acrylates, urethanes, silicone and butyl rubber. They are easy and fast to apply and speed up the process remarkable thanks to their fast curing ability.

Find the right windshield adhesives for your needs

Whether you are looking for windshield bonding solutions for OEM or aftermarket applications, our experts are happy to help you find the best possible system. All you need to do is hit the contact button below and fill in the form!


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a rail transport vehicle with adhesives and sealants


Rail industry adhesives and sealants for safety and comfort on railways

Safety, comfort, durability and effficiency are key factors in manufacturing railway vehicles such as trains, trams and underground trains. Among other materials, adhesives and sealants play a crucial role in the production process and finished product. Sealants and adhesives for rail transport are used in the interiors and exteriors of rail vehicles throughout their lifecycle from design and production to field service and maintenance. These products can be used for sealing and bonding all railway vehicles from high speed trains to railcars of light rail transit.

The main task of rail industry adhesives and sealants is to make the manufacturing process faster and the vehicles safer. The wished results can be obtained with for example specialist rail industry silicones, MS polymers, contact adhesives and 2K polyurethanes depending on the application.


The uses of sealants and adhesives in railway vehicles

Adhesives and sealants bond and seal plastics, glass and metal in railway vehicles such as trains and trams. The products can roughly be divided into sealants, adhesive sealants and adhesives. The adhesive sealants are the newest addition, and include products with superior sealing and light adhesive properties.

Sealant and adhesive materials for rail exterior

Sealant and adhesive materials for rail exterior protect joints, overlaps and seams as well as fill gaps and cracks in repair applications. They also used in body structure assembly, exterior panel bonding and other applications replacing mechanical fasteners and welded bonds. The most common applications of sealants and adhesive materials for railcar exterior include the following.

train interior with sealants for rail transport
Sealants and adhesives for rail transport are used in interiors for joints between floors and walls as well as for windows and doors.
  • Door sealing: keeping moisture and wind outside is an important job carried out by rail sealants. These sealants are often flexible systems which are resistant to water and weather.
  • Sealing and bonding direct glazing: adhesives and sealants for windows are the oldest chemical means of bonding and sealing known to the rail industry. Now adhesives and sealants are used for windhields and windows in rail vehicles with all designs and speeds.
  • Railcar exterior panel bonding: exterior panel bonding with adhesives is the application that results in the greatest weight reduction compared to panels bonded using mechanical fasteners.
  • Bonding other exterior components such as antennas: rail industry adhesives are suitable for a wide range of applications are more are being developed. Attaching antennas during assembly or afterwards is one of the more innovative applications.

Sealant and adhesive materials for rail interior

Sealants and adhesive materials are also commonly applied to railcar interiors. Not only do they contribute to on board comfort but also guarantee safety. Next to cancelling noise and vibration some sealant and adhesive materials for rail interior are fire resistant. The adhesive and sealant applications in rail car interiors include:

  • Interior sealing and fire protection: sealing rail interior components is doen by products specificall designed for the job. These sealants know many chemistries, MS polymers being one of them.
  • Floor bonding: special adhesives are used to bond rail vehicle floors. These may contribute to fire safety of the vehicle.
  • Bonding seats: bringing additional comfort and visual appeal, special adhesives are used to bond seat upholstery. One of the adhesives involved in making vehicle seats is methyl methacrylate (MMA).
  • Sealing joints between walls and floors: rail sealants make joints impermeable to moisture and protect the joints as well as resulting in a neat seam.


The requirements of sealants and adhesives for rail transport

Trains, trams and underground trains are subject to harsh environments created by changing weather conditions, vibration and continuous use. Therefore, sealants and adhesives for rail transport must meet the requirements set by the environment; they must be:

  • Shock resistant: as the travel on the rails together with the track switches may cause vibration, it is of high importance that the bonds and seals do not break. Therefore, they must be strong and flexible.
  • Electrically insulating: for some applications, it is paramount in regards of safety that the adhesives and sealants do not conduct electricity or that they completely insulate electrical charge.
  • Weather resistant: especially adhesives and sealants for exterior materials need to be weather resistant: they must endure temperature fluctuation, rain and UV radiation without being affected. Flexibility, UV stability and water resistance are characteristics to choose for: let us challenge you to come in contact with the strongest UV protected adhesive for the longest lifespan.
  • Visually appealing: trains, trams and underground trains serve as means for public transportation meaning that the visual aspects must not be ignored. Fortunately, most adhesives and sealants form a neat, equal surface which can even be over coated in order to alter the aesthetics.
  • Time and cost efficient: rail vehicles act as an irreplaceable part of the transportation business, and in business time is money. Therefore, the application of adhesives and sealants should be fast, yet it should lead to a highly durable result which does not require frequent maintenance or repairs.
  • Contributing to safety: depending on the application, there are sealants and adhesives that are certified and tested for example for fire safety, crash situations, durability in harsh environments and sustainability. The certificates are taken a closer look at later on in this article.


How rail industry adhesives and sealants compare to alternatives

The great advantage of sealants and adhesives is that they tend to be lighter in weight and greater in strength compared to their alternatives such as welded bonds. However, high quality adhesives and sealants beat the alternatives also in other measures.

  • Strength: compared to welded bonds and fasteners, adhesives and sealants are less likely to break due to their flexibility and immunity to hazards such as corrosion.
  • Eco-friendliness: even though sealants and adhesives are chemicals, there are also environmentally friendly solutions that do not contain isocyanates, silicone, halogens or solvents.
  • Application: compared to for example welding, the application of adhesives and sealants is by far not as laborious. The application possibilities are also broader: bonds and seals can be created by brush, spray, spreading, wheel, web coating, beads and dots as well as other functional methods.
  • Visual appeal: most sealant and adhesive products are available in various colors and if not, they can often be over coated to match the wished visual end result.
  • Durability: sealants and adhesives are not affected by corrosion, hence they last longer in harsh environments than traditional fasteners and welded bonds.

Save time and money, improve process efficiency, get a stronger and eco friendly result that has increased visual appeal and durability with the best solutions for rail transport and vehicles. Do you want to profit from the advantages of the best adhesives and sealants?


Certification of adhesives and sealants for rail transport

Wherever safety is the priority, certificates and standards play an important role. This is true also for the rail transports and manufacture of railway vehicles. Therefore, to guarantee safety and compliance with regulations, choose for products that have the certificates relevant for your application. Below you can find some of these regarding sealants and adhesives in rail transport. EN 45545 – 2 is the newest European standard for fire testing in rail transport. The adhesives and sealants fall under requirement sets R22 and R23 that cover requirements for interior seals, inductance coils, coils and contacts. The standard assesses products for three hazard levels, the lowest requirements being HL1 and the highest HL3. Bonds and seals can be made to comply with all three hazards levels: HL1, HL2 and HL3 to guarantee the safety of passengers and staff during onboard fire. Are your materials up to current, higher standards? Let us connect you with a system that meets and exceeds the set requirements!

Important certificates for adhesives and sealants for rail transport

FMVSS 212 stands for Federal Motor Vehicle Safety Standard: windshield mounting. This standard assesses the strength and durability of windshield (and window) mounting in crash situation. As the train windshields and windows are often glued and sealed using sealants and adhesives, their behavior in such situations is tested.

DNV GL provides functional safety for rail industry. DNV GL is a certification body that assesses, among others, products for rail transport according to several European and international standards. For rail transport these include reliability, availability, maintainability and safety, software and system safety. DNV GL certified sealants and adhesives are thus up to standards.

WheelMark indicates durability in harsh environments. Some adhesive and sealant products for rail transport can be certified according to the Maritime Equipment Directive set by the EU, due to the fact that similar or same products are durable enough to be used in ship building and repair, as well. These harsh environment adhesive systems are useful also in train exterior assemblies.

ISEGA assures that products are safe to be used in the preparation, processing, treatment, packing, transport and distribution of food. These products must have the lowest risk of contamination, and other hazards. Therefore, the ISEGA certification, together with HACCP, is crucial especially for sealing and bonding products used in railway vehicles that transport food.


Sealants and adhesives for rail transport are one click away

In case your project is in need of a suitable sealants and adhesives for rail transport, please contact us. Our specialists will assist you in finding the right adhesive or sealant for the specific purpose. By contacting us you can also enquire for more information on the possibilities, assistance in application as well as adhesive and sealant training. Our experts are happy to help.


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ms polymer adhesives used in vehicle assembly line

MS polymer adhesives and sealants increase safety, efficiency and reliability

Modified silane polyethers, better known as MS polymers make exceptional adhesives and sealants for many industries among which transport vehicle assembly. MS polymer adhesives and sealants get their inspiration from silicone and polyurethane based systems while cancelling out most of the disadvantages associated with them.

MS polymer sealants and adhesives make transport vehicle assembly safer, more efficient and more reliable. They are also free of solvents, silicone and isocyanates which all are considered harmful to humans and the environment.

MS polymer adhesive and sealant applications in vehicle assembly

tram frame in assembly line with mas polymer adhesives and sealants
MS polymer adhesives can be applied to vehicle frames to reduce total weight and improve performance.

Bonding and sealing are crucial procedures involved in vehicle assembly. The industry is on a continuous look for more efficient, safer and more reliable systems which make the vehicles greener, faster and more environmentally friendly. MS polymer adhesives and sealants are suitable for instance for train, truck and bus assembly. The most common applications include:

  • Bodywork assembly: MS polymer adhesives offer a strong and easy to apply system for bonding bus frames, truck cabins and body structures of trains.
  • Sealing and bonding windows: one of the oldest MS polymer applications are sealing and bonding vehicle windows and windshields. The flexibility of MS polymer adhesives and sealants guarantee high performance on windows and windshields of vehicles.
  • Sealing floors, roofs and interior and exterior panels: MS polymer systems are also used for sealing floors, roofs and side panels of vehicles. Their flexibility allows for high performance, whereas the minimum surface preparation and ability to bond dissimilar materials guarantee assembly efficiency.

User and eco friendly MS polymer sealants and adhesives

One of the greatest advantages of MS polymer adhesive and sealants systems is that they do not contain any silicone, solvents or isocyanates. The absence of these ingredients is typical for all modified silane systems and it brings along multiple unique advantages.

MS polymer sealants and adhesives without solvents

Solvents have long been used in adhesives and sealants to achieve beneficial properties and fast curing. However, solvents are considered hazardous for the environment and humans as they may cause respiratory problems and soil contamination.

The absence of solvents reduces, but does not remove, the need for safety measures during application. It also eliminates the problem of shrinkage which is well known among solvent based systems. Solvent based systems cure by evaporation, which causes shrinkage. As MS polymers are almost predominantly 100% solid, shrinkage is not a problem to consider.

Isocyanate free MS polymer sealants and adhesives

Isocyanates are classified as potential human carcinogens meaning that the absence of this ingredient significantly increases the safety of the adhesive or sealant systems as well as that of the finished product.

Isocyanates are also tricky as they tend to cause bubbling when the adhesive or sealant is curing. As the system comes in contact with moisture in the ambient or on the substrate, the isocyanates react with it and produce CO2. As there are no isocyanates in MS polymer solutions, they can also be applied to damp or wet surfaces.

Benefits due to absence of silicone

Even though silicone is the most hazardous or harmful of substances, the benefits of excluding it in adhesive and sealant formulations are great. As modified silane polyethers do not contain silicone, they are not likely to cause skin irritation when uncured systems are touched.
Additionally, MS polymers are less likely to cause staining than systems that contain silicone oil. The silicone free nature of MS polymer adhesives and sealants also allows for painting with almost any water based paint.

Make use of the numerous advantages of MS polymer systems

Vehicle assembly is continuously challenged by increasing expectations and demands by the buyer, governmental bodies and environmental conditions. Therefore, the use of MS polymer adhesives and sealants has increased remarkably in the past years: they are strong, reliable, efficient and environmentally friendly.

MS polymer adhesive and sealant systems do not contain harmful silicone, solvents or isocyanates yet they still form strong and flexible bonds and seals. The application process is also increased in efficiency since MS polymers require little to no surface preparation, adhere to most substrates without a primer and bond dissimilar materials. They also possess many beneficial properties which increase the performance of the solutions. These include:

  • Water resistance: MS polymers form 100% watertight seals and bonds and can be applied to damp or wet surfaces.
  • Chemical resistance: modified silane polyethers are also resistant to most chemicals present in vehicle assembly lines including oil and fuels as well as cleaning substances.
  • Flexibility: even the most demanding elastic bonding and sealing applications can be realized with MS polymer solutions thanks to their extreme flexibility which is retained throughout their lifecycle.
  • Weather resistance: as vehicles are often subject to the effects of the elements, MS polymers make an excellent bonding and sealing solutions. MS polymers are weatherproof and last significantly longer than for example polyurethane based systems.
  • UV resistance: compared to silicone and polyurethane systems, MS polymer adhesives and sealants are more resistant to UV radiation and less prone to deterioration by it requiring less frequent maintenance when applied to vehicle parts exposed to UV rays.

Find the right MS polymer adhesives and sealants for transport sector

Regardless of the type of vehicle, trains, trucks, buses, agricultural machniery and specialty vehicles can all benefit from MS polymer adhesives and sealants in terms of safety, strength, reliability and efficiency. In case you consider modified silane polyethers a suitable choice for your vehicle assembly line, contact us and get more information. Our experts are dedicated to finding the best adhesive and sealant solutions for all applications.


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public transport rail vehicle interior with mma adhesive solutions in panels and seating

MMA adhesive becoming irreplaceable in transport vehicle assembly

The transport sector has traditionally relied on metal as well as fasteners and welded bonds, however, the desire to produce lightweight, economical vehicles in fast paced assembly lines has led to an increased use of plastics, composite materials and adhesives. One of the adhesives that has become nearly irreplaceable in transport vehicle assembly is MMA adhesive which effectively bonds metal, plastics and composite materials in any combination.

MMA (methyl methacrylate) adhesive belongs to the group of structural adhesives. It usually consists of two parts, resin and hardener, and it has numerous properties that benefit that automotive and transport sectors. This two component adhesive not only bonds dissimilar materials but also remarkably reduces the weight of the vehicles.

Beneficial MMA adhesive properties

Methyl methacrylate bonding is used across industries due to its many unique properties. These adhesive systems combine the strength of structural adhesives with a flexible cure profile which together provide high strength and a longer workable time allowing for application over large surfaces and bonding dissimilar materials. These MMA adhesive properties are beneficial in multiple industries, including automotive and transport.

Methyl methacrylate bonding in transport vehicles

bus seats with grey upholstery bonded with mma adhesive
MMA adhesive is ideal for many applications in the transport sector including seats of public transport vehicles.

The MMA adhesive properties that are beneficial for the transport sector in particular, range from fast application and cure to flexibility and strength. Methyl methacrylate bonding is suitable for various applications in heavy trucks, rail vehicles, buses as well as agricultural and construction machinery including bumpers, deflectors, roofs, blades, composite tanks, vehicle seats, interior body panel structures and instrument panels.

Depending on the MMA adhesive formulation, the beneficial properties brought along include:

  • Faster production: methyl methacrylate adhesives adhere fast, allow for adjustments and reach complete cure in 4-24 hours in room temperature.
  • Chemical resistance: MMA adhesives are insensitive to many chemicals present in a vehicle assembly line including grease, oil and fuels.
  • Minimum surface preparation: MMA adhesives are among the few solutions that do not require much (if any) surface preparation. This makes the assembly line even more efficient.
  • Lightweight: as the transport sector is continuously looking for lighter materials, MMA adhesives offer an excellent solution: they effectively replace mechanical fasteners reducing the weight of the finished vehicles.
  • Equal stress distribution: as adhesives are applied over the entire length of the bond, the stress is distributed equally, which leads to increased durability of the bond.
  • Smooth bonds: from an aesthetic point of view, MMA adhesives result in smoother bonds than mechanical fasteners and most other adhesives. They reduce bond line read through (BLRT).
  • Paintability: crucial for vehicle assembly, MMA adhesives are paintable and even withstand high temperatures involved in powder coating and electron coating.
  • Strength: methyl methacrylate adhesives are known for their strength: after having reached the state of final cure they have the strength of 80 to 90% of the one of epoxy adhesives.
  • Gap filling capability: many of these adhesives are capable of filling gaps. The extent of the capability is dependent on the MMA adhesive formulation.
  • Heat resistance: the high temperature resistance of these adhesives is usually up to 120°C on a long term. Most of the adhesives can withstand peaks of higher temperatures.
  • Impact and peel resistance: MMA glues have good impact resistance and excellent peel resistance. They also contribute to the safety of vehicles by having a good crash resistance.

Finding the product with the most suitable set of MMA adhesive properties is not always an easy job: contact us for more information on available systems, reliable manufacturers and latest developments in the MMA adhesives market.

About methyl methacrylate adhesive formulation

By definition methyl methacrylate adhesives are reactive acrylic adhesives which share properties with other structural adhesives. MMA glue systems are almost predominantly two component systems which consist of a resin and a hardener. In methyl methacrylate adhesives a peroxide based activator together with amines forms a free radical that initiates the radical polymerization of methacrylate.

One of the most important benefits of methyl methacrylate adhesive formulation is that it can be modified to suit specific applications. The methyl methacrylate bonding is often preferred due to its unique strength forming and curing processes: rather than slowly building up strength during the process, the adhesive remains workable and then cures into a fixture strength in a matter of minutes. Changing the MMA adhesive formulation and mixing rate allows for modification of the workable time and curing time.

Developments in the MMA adhesives market

Methyl methacrylate adhesives have taken a solid role in the transport and automotive industries as the chemical bonding material that allows for use of lightweight dissimilar materials as well as creates strong bonds in many applications. Regarding these adhesives, the fastest growing sector is projected to be composite materials, and the most demand is likely to come from automotive and transport sectors including road transport. This is due to the desire to produce lightweight, low carbon emitting vehicles. MMA adhesive properties benefit vehicle components, interiors and exteriors.

Get in touch with reliable MMA adhesive manufacturers

Although methyl methacrylate bonding is extremely common in automotive and transport sectors, there are differences between the MMA adhesive manufacturers and their products. In case you are in need of an adhesive system or are looking to challenge your current supplier, contact us and let us find you the MMA adhesive that benefits your process the most.


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adhesives for antennas in a rail vehicle

Attaching vehicle antennas with adhesive

Technological development has resulted in increasing requirements and desire for communication and network in vehicles such as trains, trucks and buses. In order to enable Wi-Fi connection, satellite positioning and train signalling, multiple transmitting and receiving antennas must be installed on the vehicles. These antennas are traditionally mounted on the vehicles using mechanical fasteners, however, also advanced adhesives can be used for the purpose. Adhesives offer a considerable alternative to fasteners as they prevent corrosion, resist UV radiation and reduce the weight of the vehicle while allowing for aerodynamic designs.

Adhesives for antennas vs. mechanical fasteners

In order to create a fully functioning network in vehicles for customers and operational purposes, antennas must be installed and mounted appropriately. Adhesives for antennas contribute a great deal to the efficiency of both the antenna and the vehicle as a whole. Some reasons for replacing mechanical fasteners in mounting antennas with glues include:

  • Lighter weight: adhesives are generally lighter in weight than mechanical fasteners. For example in a bus, replacing fasteners with glues can result to weight reduction of 80 Kg. Although the antennas do not require many fasteners, every bond that can be glued contributes to overall weight reduction.
  • Corrosion resistance: the mechanical fasteners are usually made of metal, which may promote corrosion. This is not the case with adhesives, in fact, they might even function as an anti corrosion barrier.
  • Aerodynamic design: glues are more flexible than fasteners when it comes to design freedom. Adhesives for antennas allow for neat design unlike most mechanical mountings which lack flexibility.
  • Lower cost: when it comes to costs, adhesives for vehicle antennas are beneficial as rather small amounts suffice, application is faster and the costs in general lower than those of mechanical fasteners.

Properties of adhesives for vehicle antennas

The antennas for buses, trains, trucks and other vehicles are usually installed on the rooftop of the vehicle. In some cases, they can also be hidden under non conductive fairing. However, most of the times the antennas are placed in plain sight subject to the elements. The desired characteristics of antenna adhesives include the following.

  • UV resistance: as the antennas are usually placed on rooftops of vehicles, also the adhesives holding them in place are exposed to the elements, also to UV radiation. Therefore, the adhesives for antennas are UV proof.
  • Conductivity: most antennas must be installed on an electrically conductive surface, usually a metal sheet, to maintain a magnetic field. If required, the adhesive can also be electrically conductive in order to prevent disturbance of the magnetic field.
  • Strong: it goes without saying that the adhesive must be strong enough to hold the antenna in its place even when high speed is involved.
  • Easy to apply (and disassemble): the service life of vehicles that require antennas is rather long: for example a train serves for 30 to 40 years on average. During their service life, new antennas are placed and outdated ones are replaced meaning that the adhesives that bond them to the vehicle must be easy and fast to apply. When replacement is expected, one can also choose for an adhesive that allows for disassembly.

Buying adhesives for vehicle antennas

Each antenna has different requirements regarding placement and means of fastening, as does each vehicle that requires an antenna. Contact us to find the best adhesive for the antennas in your vehicles and discover the possibilities for customized antenna adhesive systems.


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adhesives and sealants for light rail used in tram

Light rail and underground rails benefit from adhesives and sealants

Faster, safer, stronger and greener are all areas where light rail transit and underground trains (subway) must continuously improve. Adhesives and sealants for light rail and underground trains can help on all these areas as they increase comfort, make vehicles safer, for strong bonds and seams as well as offer sustainable alternatives for mechanical fasteners.

  • Faster: adhesives and sealants allow for faster assembly of light rail and underground trains but also contribute to the aerodynamic design and weight of the vehicles.
  • Safer: fire resistance, crash performance and vibration damping can all be increased by choosing the right adhesives and sealants for light rail and underground trains.
  • Stronger: the corrosion risk is remarkably reduced when glues and sealants are used as they prevent metal to metal contact, which makes the vehicles stronger. Adhesives and sealants also distribute the stress equally on the joint unlike mechanical fasteners such as screws.
  • Greener: adhesives and sealants reduce the weight of vehicles and allow for more aerodynamic designs, which reduces the power consumption. They also allow for more efficient manufacturing process requiring less resources.

Requirements for adhesives and sealants for light rail and underground trains

Light rail and underground trains are often subject to harsh environments as they are exposed to the elements and almost continuously on the move. Adhesives and sealants for light rail and underground trains must meet some requirements in order to guarantee durability and long service life. These include:

  • Weather resistance:especially the adhesives and sealants applied to the exterior surfaces of light rail and underground trains must be weather resistant. The must be water and air tight as well as UV resistant.
  • Electrical insulation:to guarantee safety on board, some bonds and seams must not conduct electricity. Some of them must be completely electrically insulating.
  • Shock resistance: as the ride may not always be the smoothest, the adhesives and sealants must be strong and flexible enough not to break for example during a rough rail switch. Adhesives and sealants also damp noise and vibration.

Note that light rail transit and underground trains additionally must meet several standards set for rail transport vehicles.

Adhesives and sealants for glazing and interior trim, and everything in between

Adhesives and sealants are used on every stage of the life span of light rail transit and underground trains from design and manufacturing to repairs and maintenance. The seams and bonds are required of improved safety, comfort and durability. Below we introduce some of the adhesive and sealants applications that take place in the manufacturing of light rail and underground trains.

adhesives and sealanst for light rail in dark interior trim
The adhesives and sealants for light rail and underground train floors and side panels are often polyurethane based systems.
  • Body structure: in the assembly of light rail and underground train body structures adhesives prevent corrosion, water ingress and standing water. The also damp noise and vibration. MS polymers as well as polyurethane and epoxy hybrids are common systems for body structures.
  • Roof bonding: the roofs of light rail and underground trains require flexible bonding and sealing solutions which are not affected by weather or temperature fluctuations. Usually fast curing two component systems are preferred.
  • Floors and side panels:durability and safety are among the most important requirements as regards vehicles. The ones for floors and side panels contribute to safety in crash situations and comfort during the ride. Elastic polyurethane adhesives are most commonly used.
  • Interior trim: the plastics and fabrics in interior trim require eco-friendly bonding solutions which contribute visual appeal and increase comfort. Although water based adhesives are common, hot melt adhesives are the most used solutions.
  • Direct glazing: sealants and adhesives for direct glazing contribute to process efficiency by providing fast curing and high initial tack. Silicone, MS polymer and polyurethane based systems are common.

Looking for the perfect solutions for light rail and underground trains?

The transport and vehicles industry is continuously developing and new adhesive and sealant solutions are frequently introduced. In case you are looking for sealing and bonding solutions to improve the product or the process, contact us and let us find the best adhesives and sealants for your light rail transit or underground trains.


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