FKM (Fluorocarbon Rubber)

Fluorocarbon is an elastomers based on fluororubber (FPM, FKM), also known as VITON (registered trade name of Du Pont), which can be used for U-cups, lip seals, packings, wipers and special seals. Its outstanding properties include high resistance to heat, ozone, many chemicals and it is all-weather-proof. FPM is compatible with mineral oils and greases containing sulphur, HFD pressure fluids (nearly all phosphate esters and chlorinated hydrocarbons), crude oil and sour gas. FPM is not resistant to anhydrous ammonia, amines, ketones, esters, hot water and low molecular weight organic acids.

Fluorocarbon combines high temperature resistance with excellent chemical resistance. Excellent for use with alcohol and aromatic fuels and highly resistant to ultraviolet light and ozone. This material is not recommended for use in low temperatures or in aircraft hydraulic fluids. Temperature range is -20° to +400° F.


SSP Manufacturing, Inc.

Phone: 1-908-852-3125     Email:

Data Sheet for FKM (Fluorocarbon Rubber)

Property Specification Value
Hardness ISO 868 81 +/- 5 shore A
Modulus 100% DIN 53 504 Greater than or Equal to 870 psi
Tensile strength DIN 53 504 Greater than or Equal to 1305 psi
Elongation at break DIN 53 504 Greater than or Equal to 200%
Tear Strength DIN ISO 34-1 Greater than or Equal to 114 lbf/inch
Specific Gravity ISO 1183 2.53 g/cm3
Rebound Elasticity DIN 53 512 7%
Abrasion DIN 53 516 175 mm3
Compression set ISO 815 Less than or Equal to 17%
70 deg. C / 24h @ 25% deflection
Compression Set ISO 815 Less than or Equal to10%
100 deg. C / 24h @ 25% deflection
Compression Set ISO 815 Less than or Equal to 15%
175 deg. C / 24h @ 25% deflection
Min. Service Temperature -4 deg. F
Max. Service Temperature 428 deg. F
Max. Temperature Water / Steam
Max. Temperature Hot Air (short) 572 deg. F short

FPM offers excellent permeability and compression. It doesn’t degenerate when exposed to UV light, ozone, acids, and diesel. When using this material, the process of aging of the seal is slow as well. They are extremely flexible in hot as well as sub-zero temperatures. Due to these properties, FPM seals are widely used in automotive applications, especially in fuel supply components and related applications.
This material is FDA Approved (FDA CFR 21-177.2600 Compliant)
FDA Approved Seals & Gaskets