EPDM, or ethylene propylene diene monomer, is a copolymer of ethylene, propylene and a small amount of non conjugated dienes, which is a kind of ethylene propylene rubber.Expressed by EPDM (Ethylene Propylene Diene Monomer),Because its main chain is composed of chemically stable saturated hydrocarbons and only contains unsaturated double bonds in the side chain, it has excellent aging resistance such as ozone resistance, heat resistance and weather resistance,It can be widely used in automotive parts, building waterproof materials, wire and cable sheaths, heat resistant rubber hoses, tapes, automotive seals and other fields.