- Sensor safe RTV silicone gasketing material designed for use on high temperature turbocharged or high-performance engines
- 3 times more oil resistant than conventional silicones
- Temperature range of -75F to 700F intermittent
- Sets in 1 hour and will not shrink or crack
- J-B Weld is proudly made in the USA
J-B Weld Ultimate Copper Silicone Gasket Maker and Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material that is 3 times more oil resistant than conventional silicones and designed to resist the high operating temperatures of turbocharged or high-performance engines. Ultimate Copper is effective in temperatures from -75F to 700F intermittent. Upon curing, which occurs when the product is exposed to the moisture in air, the silicone forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering, is sensor safe and is great for many automotive applications.
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