Features and Benefits:

• Sensor safe black RTV silicone gasketing material for use in mechanical assemblies
• Resists temperatures up to 500 degrees F intermittent and is great for automotive applications
• Forms a tough, oil and petroleum resistant waterproof gasket and seal on most surfaces
• Sets in 1 hour and will not shrink or crack
• Great for oil pans, valve covers, timing gear covers

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.