OEM specified. Permatex® Ultra silicones were developed to meet today’s technology changes. Sensor-safe, low odour, 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 -54°C to 260°C intermittent; resists auto and shop fluids and vibration. Suggested Applications: Valve covers, oil pans, and timing covers.