Epdm plastic is a terpolymer of ethylene, propylene and non conjugated dienes. it began commercial production in 1963. The annual consumption of the world is 800000 tons. The main characteristic of EPDM is its superior oxidation resistance, ozone resistance and corrosion resistance. As EPDM belongs to polyolefin family, it has excellent vulcanization characteristics. Of all rubbers, EPDM has the lowest specific gravity. It can absorb a large amount of filler and oil without affecting the characteristics. Therefore, a rubber compound with low cost can be prepared.