PTFE gaskets which applied in pump and valves are molded or lathed with suspension resin.  The PTFE can be filled with different fillers such as glass fiber, carbon fiber, graphite, PHB and PTFE submicron powder according to the working pressure, temperature, chemical resistant and low abrasion.  Density:2.1-2.3 g/cm3; Shore Hardness: D 55-60.