AS568-006 SV75 Fluorocarbon FKM O-Rings 75 Durometer Square

Fluorocarbon (or FKM) rubber is a widely used, premium grade compound especially well suited to applications where prolonged exposure to petroleum oils at high operating temperatures is encountered. Such properties make it especially useful in automotive "under-hood" applications. Additionally, FKM is particularly resistant to swell in the highly aromatic, non leaded, additive loaded gasoline mandated by environmental regulations today. Fluorocarbon rubber is exceptionally resistant to embitterment when exposed to high heat over long periods of time; it is considered to be serviceable indefinitely when exposed continuously to 200°C. The Chemical Resistant Fluorocarbon FKM O-Rings have similar functional characteristics to Buna-N, but with much higher temperature and chemical resistance characteristics.