Epoxidized Soybean Oil is a new plasticizer, it's a pale yellow thick oily liquid at normal temperature. It's the most widely-used epoxide plasticizer and stabilizing agent of polyvinyl chloride. It has good compatibility with PVC resin. It has low volatility and little mobility and won't react in heat or light,it's water-proof and oil-proof. It improve the products' surface gloss, stability in heat or light, liquidity and also to reduce the processing temperature . The physical property , aging resistance,toughness and folding resistance will be increased. It also reduce the dosages of plasticizers, stabilizers and lubricants.