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Your cart is empty.Permatex High-Temp Red RTV Silicone Gasket Maker is formulated for high temperature applications or heavy-duty use such as towing. It replaces almost any cut gasket by making reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating caused by thermal cycling. Coats pre-cut gaskets to increase reliability. Resists auto and shop fluids, with a temperature range of -65 degrees fahrenheit to 650 degrees fahrenheit intermittent. A first generation 1970-1980 gasket maker, it is OEM specified. Permatex offers significant performance advantages which include outstanding oil resistance, excellent torque retention and hi-temp, sensor-safe properties. Extended warranties, engine sensors and new component materials such as aluminum, bi-metal alloys and high-tech plastics, have created the need for superior RTV silicone gasket makers in both OEM production and service applications. Permatex always has the right gasket maker for your application.
Robert
Reviewed in the United States on March 16, 2025
This is my go to
David Hamilton
Reviewed in the United States on April 19, 2023
Great product. Needed a sealant in place of rubber or cork seals that are known to leak on an old Land Rover engine rebuild. Cleaned the surface and applied. Very good seal that was tested with a pressurized smoke machine to confirm the seal.Great for areas exposed to heat and oil or petroleum chemicals. This is now a standard in my garage.
Auto doc
Reviewed in the United States on August 9, 2021
Didn't get to use any of it. Dispenser broke off.
Harvey
Reviewed in the United States on June 20, 2021
Easy to use
Tonyks
Reviewed in the United States on July 28, 2019
Nice product
Customer
Reviewed in the United States on July 19, 2019
works grate
Johann Bisbing
Reviewed in the United States on May 25, 2018
Makes for an easy application of RTV in a shop or garage environment. The easy applicator nozzle did not work at all on the can I got. I ended up taking off the black trigger thing and just using the nozzle like cheese in a can. Made for a quick and easy application on heavy duty vehicle hubs.
aaron speldrick
Reviewed in the United States on January 23, 2016
best stuff on earth easiest to use and reuse seals anything you need it to
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