Formulated specifically for water pumps and thermostat housings
Highest water-glycol resistance available in RTV silicone
Superior adhesion and flexibility
Can be used as a gasket maker or dressing
Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings.
For best results, clean and dry all surfaces with a residue-free solvent, such as Permatex® Brake & Parts Cleaner.
Apply an even, continuous 1/8″ bead of silicone to one surface, surrounding all bolt holes. Remove excess at once with knife.
Assemble parts immediately. Do not squeeze out silicone by over tightening bolts.
Silicone dries in 1 hour, and fully cures in 24 hours, at 70˚F - 50% relative humidity. Allow more time in cold weather.
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.
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