Multipurpose flexible silicone sealant, ideal for use on flexible flanges, machined or cast surfaces, metal or plastic. Cures on exposure to moisture in the air to form a tough rubber gasket. Resistant to aging, weathering, thermal cycling without hardening, shrinking or cracking. Typically used on valves covers, timing gear covers, differential covers, oil pans, transmission pans, water pumps and thermostat housings. Resists vibration, thermal expansion and contraction. Suitable for metal, plastic and painted parts. Operating temperatures between -54 °C and 204 °C.