FFKM (Perfluoroelastomer)

Grade of Rubber. Grades are not interchangeable.

Perfluoroelastomer, ASTM FFKM. FFPM is an older name for the same family and resolves here for identification. The family name does not claim a particular perfluoro brand or a chemical-resistance certificate. This entry identifies the family only. It does not state hardness, dimensions, stock, a certificate, or a lead time.