Permatex red silicone sealant 81160 85g 

• Formulated for hi-temp applications, or heavy-duty use (such as towing, etc.).
• Replaces almost any cut gasket by making reliable “formed-in-place” gaskets that resist cracking, shrinking and migrating caused by thermal cycling.
• Coats pre-cut gaskets to increase reliability. Temperature range -65ºF to 650ºF (-54°C to 343°C) intermittent; resists auto and shop fluids.