Features & Benefits
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JB 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 seal on most surfaces.
- Cures to a black color.
- Made in USA
- 100% Silicone
- Will not shrink or crack
- Great for oil pans, valve covers, Transmission pans, timing gear covers