EPDM EPDM is ethylene, propylene and non-conjugated diene terpolymer, began commercial production in 1963. Annual consumption around the world is 800,000 tons. EPDM most important characteristic is its location resistance to oxidation and corrosion resistance to ozone Because EPDM belong polyolefin family, it has excellent curing characteristics. among all the rubber, EPDM has the lowest proportion. it can absorb a lot of filler and oil not affect the properties. Therefore, low-cost production of rubber compounds .