P.T.F.E. performs very temperature, electric and chemical resistance properties. Its perfect non-stick & self-lubricant property performs the lowest friction-coefficient in all the solid products. But its abrasion property, compression strength, cold flow resistance and many mechanical properties not so good. Therefore The P.T.F.E. compound materials keep the P.T.F.E. materials to obtain its good characters and improve the mechanical properties. Glass fiber, graphite, MoS2, bronze & carbon are popularly to be used as the fillers.