... resin. Used in corrosion resistance linings and seals, guide and electrical insulator.Density: 2.1 2.3g/cm3Tensile ... friction 3. chemical resistance 4.aging resistancePTFE SHEET Introduction :Teflon is actually a substance called polytetrafluoroethylene (PTFE), which ... -resistant liner, seal, lining and gasket, scrap, guide rail, dielectric material for different frequency, bridge bearing slide.