OEM specified. Permatex Ultra silicones were developed to meet today's technology changes. Sensor-safe, low odor, non-corrosive. Outstanding oil resistance and joint movement tolerance. Eight times more flexible than cork/composite gaskets; three times more oil resistant than conventional silicones. Temperature range -65F to 500F (-54 Deg. C to 260 Deg. C) intermittent; resists auto and shop fluids and vibration. Product Features:Eight times more flexible than cork and composite gasketsThree times more oil resistant than conventional siliconesOEM specifiedResists auto and shop fluids, as well as vibrationSensor-safe, low odor, and non-corrosiveTemperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)