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Perfluoroelastomer (FFKM)

Perfluoroelastomers (FFKM) currently offer the highest operating temperature range, the most comprehensive chemical compatibility, and the lowest off-gassing and extractable levels of any rubber material. Parker's proprietary formulations deliver an extreme performance spectrum that make them ideal for use in critical applications like semiconductor chip manufacturing, jet engines and chemical processing equipment.


Heat resistance

• Up to 320°C (608°F)


Cold flexibility

• -40°C to -26°C (-40°F to -15°F)


Chemical resistance

• Aliphatic and aromatic hydrocarbons

• Chlorinated hydrocarbons

• Polar solvents (ketones, esters, ethers)

• Inorganic and organic acids

• Water and steam

• High vacuum with minimal loss in weight


Not compatible with:

• Fluorinated refrigerants (R11, 12, 13, 113, 114, etc.)

• Perfluorinated lubricants (PFPE)

Parker Hannifin
O-Ring & Engineered Seals
2360 Palumbo Drive
Lexington, KY 40509
Ph: 859-269-2351
Fax: 859-335-5128