The Ebilon gasket is a product with the internal rubber and sealing area surfaces are covered with PTFE. It has both the elasticity of rubber and excellent chemical resistance of PTFE. It has two bumps on its surface, thus, has a better sealing performance than that of a flat rubber gasket. It can effectively seal even at a low tightening pressure. It is mainly used for PVC, FRP, glass-lined flange, etc., where a low tightening pressure is required.