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Fluoropolymers in

At 3M, we recognise that the automotive industry is constantly changing to meet the demands of megatrends.

Megatrends such as increased focus on environmental protection, the emergence of megacities, and an ageing but more active population that stays mobile longer.

These megatrends translate into requirements like more efficient cars with reduced emissions, the development of alternative propulsion systems, and advanced driver assistance and safety systems in the private transport sector.

3M™ Dyneon™ Fluoropolymers enable design engineers in the automotive industry to adapt to these trends and develop reliable and efficient solutions.

They are the first choice for fuel and power train systems because of their effectiveness as barrier materials against evaporating emissions. They also show chemical resistance to a broad variety of lubricants and fuels at elevated temperatures over the vehicle‘s lifetime, guaranteeing the highest possible safety standards.

Power Train

Sealing a vehicle's power train is increasingly challenging. Extended life warranties, downsizing of engines resulting in higher engine temperatures, and tighter legislation mean more is demanded from seals than ever before.

Due to their excellent chemical and temperature resistance, 3M™ Dyneon™ Fluoropolymers offer improved sealing and wear resistance. This is vital in protecting parts from aggressive engine oils, fuels and blow-by gases.

Find out more about important applications for Dyneon Fluoropolymers in the power train:

Fuel Systems

Fluoropolymers used in today's fuel systems need to cope with increased demands. More stringent fuel emission standards. Extended warranties. More aggressive fuel formulations. Increased thermal performance ranges for seals.

3M™ Dyneon™ Fluoropolymers are the ideal choice for fuel system applications due to their:

  • excellent permeation resistance
  • effectiveness as barriers against evaporative emissions
  • chemical resistance to a broad number of fuels (including biodiesel)
  • long term sealing capability
  • thermal resistance over a broad service temperature range (- 40 °C to + 230 °C).
Typical fuel applications for Dyneon Fluoropolymers include:

Exhaust Systems

Catalytic converters have been mandatory in exhaust systems of combustion engines for many years now. Lambda probe seals, bonded seals, diaphragms, exhaust mounts and O-rings all have an important role to play.

High performance materials are essential to ensure immediate engagement when the engine starts and resistance to high temperatures. Our product range offers just the right materials for the different applications in the exhaust system.

Typical applications for 3M™ Dyneon™ Fluoropolymers:


Transmissions systems - those parts of the drive train which convert the power of the engine to the axle and the wheels - are impacted by changing requirements regarding emissions, weight reduction and fuel economy paired with optimised performance.

New transmission concepts bring constantly changing requirements for sealing materials. Temperatures are going up and transmission fluids – especially those for automatic transmissions - are getting more and more aggressive. Our wide product portfolio enables automotive design engineers to develop solutions that withstand challenges over a vehicle's lifetime.

Typical applications for 3M™ Dyneon™ Fluoropolymers in the transmission:


More aggressive environments. A longer expected lifetime. The demands of different climates. The list of requirements for the fluoropolymers used in a vehicle’s chassis is a long one. Our product range ticks off the lot.

Typical applications for 3M™ Dyneon™ Fluoropolymers in the chassis:

Wire & Cable

Electronic systems and electrical power distribution are now paramount in automotive applications. Many new applications for fluoropolymers have been established in engine, transmission and chassis electronics, safety and driver assistance systems as well as in-car infotainment systems. High power electrical motors are gaining importance in vehicles as well. The cables which provide the power to these motors are seeing higher temperatures, increasing the need for fluoropolymers in cable insulation.

Last but not least, seat heating systems use harnesses in fluoropolymers to withstand higher temperatures and prevent fire due to possible overheating.

Typical applications for 3M™ Dyneon™ Fluoropolymers in car electronics:

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