... material 4.8cm D,2mmT * Hot Sales * Silicone gasket for mechanical parts: Name Silicone gasketMaterial100% silicone rubberPhysical Properties1 ... . Silicone gasket are excellent in electrical insulation, anti-aging/ozone/ ... weather resistance,2. Obturator silicone gasket.So it is good durable,heat-resisting,light, ...