Nitrile Butadiene Rubber (NBR), 68-78 °IRHD. Copolymer of acrylonitrile and butadiene. To meet BS2751 BA70 and ASTM D2000/SAE J200 line call-out 2MBG 714, B14, EA14, EF11, EF21, EO14, EO34, F17. Applications: Excellent resistance to petroleum based oils and fuels. Excellent compression set, tear and abrasion resistance. Good water resistance, but poor against ozone and weather. |