TPV (Thermoplastic vulcanizate), with excellent Anti-aging and head resistance. TPV is comparable with EPDM rubber by its good elasticity and compression deformation resistance, resistance to environment, aging resistance, and its resistance to oil, solvent resistance as same as Chloroprene rubber. It has light specific gravity (0.90 0.98), wide temperature range for application (-60 135), wide hardness degree(40-50D),and easy to colored, all of these advantages are greatly raised the freedom of products design.