Granville Exhaust Repair Putty is a water based, heat resistant fibrous putty based on inorganic water based binders and heat resistant fillers. It is designed for use in the repair of exhaust systems for automotive and general industrial applications. The putty features a heat curing mechanism which provides quick repair times. It economically repairs holes and cracks in exhausts and withstands temperatures up to 1000°C. This ready-to-use, easy-to-apply soft paste offers high bond strength and fast setting, curing to a hard finish especially when heated. It seals and repairs exhaust systems in situ, requires no special tools, and is asbestos-free, VOC-free, and shock and vibration resistant during service. To use, remove all dirt, grease, and loose rust, slightly roughen the surface, and apply the putty liberally with a pallet knife, removing any excess.