Permatex® Ultra Grey® Rigid High-Torque RTV Silicone Gasket Maker
OEM specified. Permatex® Ultra silicones were developed to meet todays technology changes. Sensor-safe, low odor, noncorrosive. 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 -65ºF to 500ºF (-54°C to 260°C) intermittent; resists auto and shop fluids and vibration.
Suggested Applications: Valve covers, oil pans, automatic transmission pans, intake manifold end seals, timing covers, water pumps, and thermostat housings
Suggested Applications: Cover housing gasket, differential, assembly to rear axle housing, power dividers, axle shaft flanges
For best results, clean and dry all surfaces with a residue-free solvent, such as Permatex® Brake & Parts Cleaner.
Gaskets are best formed using a 1/16″ to 1/4″ (2 to 6 mm) bead.
Apply a continuous and even bead of silicone to one surface; surround all bolt holes. Assemble parts immediately. Finger tighten bolts until material begins to squeeze out around flange. Allow to dry for one hour then retighten 1/4 to 1/2 turn.
Silicone dries in 1 hour, and fully cures in 24 hours. Allow more time in cold or very dry conditions.
Replace cap after use. Clean hands with dry cloth or Permatex® Fast Orange® Hand Cleaner. Clean tools with non-flammable cleaning fluid.
NOTE: Not recommended for use on head gaskets or parts in contact with gasoline.