Permatex Ultra Black OEM silicone. Fast curing formula. Sensor safe, low odor, non corrosive. Meets performance specs of OE silicone gaskets.
Black For Heavy Duty Oil Applications - Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, water pumps, thermostat housings
Blue Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, water pumps, thermostat housings
Copper - For High Temperature and Performance Applications - Suggested Applications: Exhaust manifolds/headers, valve covers, oil pans, intake manifold end seals, water pumps, exhaust tubes
Grey For Rigid Torque and High Vibration Applications Suggested Applications: Cover housing gasket, differential, assembly to rear axle housing, power dividers, axle shaft flanges