Hydrogenated Nitrile Rubber (HNBR) is a highly saturated elastomer obtained by special hydrogenation of nitrile rubber. The research of HNBR is to fill the price gap between FKM / FVMQ and nitrile rubber. HNBR has good oil resistance (resistant to fuel, lubricating oil and aromatic solvents); due to its highly saturated structure, it has good heat resistance and good chemical resistance (Freon, acid, alkali has good resistance Chemical), excellent ozone resistance, high compression set; at the same time, it also has high strength, high tearing properties, excellent abrasion resistance and other characteristics, is one of the rubber with excellent comprehensive properties. Temperature range from –30 °C to +160 °C