Ethylene Propylene Diene Monomer (EPDM) is a copolymer of ethylene, propylene and a small amount of unconjugated diolefin. EPDM (Ethylene Propylene Diene Monomer) is indicated by ethylene propylene diene monomer (EPDM) because its main chain is composed of chemically stable saturated hydrocarbons and only contains unsaturated double bonds in the side chain. Therefore, its ozone resistance, heat resistance, weather resistance and other excellent aging resistance, can be widely used in automotive parts, building waterproof materials, wire and cable sheaths, heat-resistant hose, tape, automotive seals and other fields.