AUTO GRAY Autoamerica's gray RTV silicone is a high temperature silicone. It forms into any seal size or shape and is resistant to temperature and migration caused by thermal cycling. Withstands temperatures between -62ºC and 315ºC. Ideal for timing covers, intake manifolds, exhaust manifolds, cylinder heads, carburettors and much more. Dries securely like a seal. In the size of 90g.