It Is butadiene and propylene fat copolymer, according to propylene fat content is different, have 20, 40, butadiene acrylonitrile rubber, acrylonitrile content is higher, oil resistance, heat resistance, the better, but low temperature performance is poor. Butadiene acrylonitrile rubber sulfide compression permanent deformation is lesser, elastic, resist tearing resistance, wear resistance is very good, and has the very good oil resistance and resistance to gasoline resistance.
EPDM rubber It Is the copolymer of ethylene and propylene, especially resistant to phosphate vinegar series hydraulic oil, not afraid of high pressure water vapor; Also has resistance to silicone oil, silicone grease, water, dilute acid and dilute alkali, acetone, ethanol, and other performance.