Superior Quantities of acrylonitrile end in a rubber with superior oil resistance. Compounds with very low acrylonitrile content have a better low temperature adaptability and resilience. Ethylene Propylene Rubber (EPM) is usually a copolymer consisting of ethylene and propylene. The ethylene propylene polymer is chemically inert as it is made https://beediadiamond.com/catalog/rubber-points