Permatex 25223-6PK The Right Stuff Gasket Maker, 4 oz. (Pack of 6) This latest elastomeric rubber gasket technology is blowout resistant and outperforms pre-cut gaskets Protects against leaks caused by vibration and thermal expansion Temperature range: -75F to 450F continuous, 500F intermittent Make leak-proof gaskets in 1 minute Sensor-safe and resists shop fluids