RAX®High temperature acetic sealant 988 High Temp Silicone Sealant is a paste like, single component RTV silicone sealant with exceptional resistance to extreme temperatures, moisture, vibration and chemicals such as oils and anti-freeze. It is designed for indoor and outdoor use and adheres to most common building material for the purpose of bonding, sealing, assembly, oven doors, repair work in furnaces, chimneys, car engines, heating elements, industrial seals, duct work, generators etc….