Permatex 25223 Gasket Maker - High-Temperature RTV Silicone Sealant for Automotive, Marine & Industrial Use - Perfect for Engine Gaskets, Valve Covers & Exhaust Repairs

The Right Stuff Sealant is awesome. You can literally make a gasket with it and adheres the best of any I've tried. Strong against tearing/shearing forces when two surfaces are joined.The Aerosol Tube with trigger nozzle is really convenient when applying carefully and you can meter flow easily. Less messy too.