Special steam resistant, Brown Fluoroelastomer Rubber, 70-80 °IRHD. Copolymer of vinylidene fluoride and hexafluoropropylene. To meet ASTM D2000 line call-out:- M2HK710, A1-10, B38, EF31, EO78, F15, Z1, Z2, Z3. Z1 = hardness 70-75. Z2 = compression set 30% max. Z3 = colour brown. ASTM designation = FKM. ISO designation = FPM. Applications: Compounded for improved resistance to acids and aqueous media. Excellent resistance to oils, fuels and hydraulic fluids at high temperature. |