HONDABOND HT HONDA ENGINE GASKET SEALER SEALANTHondabond HT Sealant Genuine high temperature silicone liquid gasket. This unique formula to Honda is non acidic and won't corrode aluminium like other silicone gasket products will. For use in areas not requiring solid gaskets. For example when you're replacing water pumps or rocker cover gaskets. Dries quickly, resists vibration, water and oil, and effective from 75F to 600F. Use only the best.