... , ISO9001,ISO14001; 3, Oil seals, Water Seals, Air Seals Silicone rubber washer: Silicone Rubber Seals Gasket Specification1, MaterialNBR, NR, EPDM, Silicone, SBR, etc2 ... -SGS Approval, Non-Toxic, Oil Resistant, Tasteless, Non-Stick finish, Durable and easy cleaning.3, Temperature-40°C to + 150°C4 ... getting the deposit if need to develop new mould. Silicone rubber washer