FKM (Fluorocarbon Rubber)

Categories: ,


FKM Seals & O-Rings offer excellent high temperature capabilities and resistance to many organic and inorganic solvents and chemicals.

Competitive lead times & pricing from Lanson Polymers allied with our vast experience in the design & supply of critical seals & components into a variety of markets will allow you to specify the optimum solution for your application.
A wide variety of seals and components can be manufactured using FKM Materials including:
O-Rings, T-Seals, L-Seals and Cap Seals amongst others.

Common Trade names include Viton®, Dyneon®, Tecnoflon®.

Lanson Polymers Fluorocarbon (FKM) Compounds

LP-418: 70 Durometer – Temperatures from -15°C up to +200°C – general use compound

LP-435: 90 Durometer – Temperatures from -15°C up to +200°C – Rapid Gas Decompression resistant compound

LP-434: 75 Durometer – Temperatures from -40°C up to +200°C – Low Temperature compound

LP-413: 70 Durometer – Temperatures from -55°C up to +200°C – Ultra Low Temperature compound

The above compounds are only a small sample of our broad range of FKM materials – please contact us to discuss your particular application and we can recommend an optimum solution.

Temperature Range

-55°C to +200°C depending on compound specified


Typically used in seals where higher temperature and / or chemical resistance is required.




  • Excellent high temperature resistance
  • Compatible with mineral oils, petroleum based fluids, many organic solvents and chemicals
  • Low temperature performance is limited
  • Typical temperature range -20° to +204˚C
  • Specific compounds can see -46˚C in static applications




Viton® is a Registered Trademark of DuPont

Dyneon™ is a Registered Trade Mark of 3M

Tecnoflon® is a Trademark of Solvay