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  • J-B Weld Ultimate Black Gasket Maker and Sealant
  • J-B Weld Ultimate Black Gasket Maker and Sealant
  • J-B Weld Ultimate Black Gasket Maker and Sealant
  • J-B Weld Ultimate Black Gasket Maker and Sealant
  • J-B Weld Ultimate Black Gasket Maker and Sealant

J-B Weld Ultimate Black Gasket Maker and Sealant

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J-B Weld Ultimate Black Gasket Maker and Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where maximum petroleum and oil resistance is required. Upon curing, which occurs when the product is exposed to the moisture in air, the silicone forms a tough, waterproof gasket and seal on most surfaces. It will not shrink or crack, resists oil and petroleum products, resists weathering, is sensor safe and has good temperature resistance up to 500 degree F intermittent and is great for many automotive applications.