JB WELD J-B Weld ultimate black gasket maker & 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, the silicone forms a tough, waterproof, gasket and seal on most surfaces. It will not shrink or crack, and also resists oil and petroleum products, resists weathering, is sensor safe, has good temperature resistance up to 500F intermittent and is great for many automotive applications.

Features

• Ultimate black RTV gasket maker and sealant.
• Designed for use in mechanical assemblies.
• Maximum petrol and oil resistance.
• Temperature resistance up to 260C.
• Set time: 1 hour, Cure colour: Black.