J-B Weld Hi-Temp Red Silicone Gasket Maker and Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material, 

designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist. 

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.

GREAT FOR

Oil Pans

Valve Covers

Exhaust Manifolds

Water Pumps

Timing Covers

Differential Covers

Drive Housing

Oven Doors