Red RTV Gasket Maker
This high-temp gasket maker is great for heavy-duty applications. It replaces almost any cut gasket by making a reliable "formed-in-place" gasket that resists cracking, shrinking, and migrating that can be caused by thermal cycling. It can be used to coat pre-cut gaskets to increase reliability. Temperature rating is -65°F to 650°F intermittent and can resist auto and shop fluids.