Chimney has been filling the supply and accessory needs of over 8 000 chimney sweeps hearth retailers masons and contractors for over 25 years. Chimney has the privilege of serving over 80% of the chimney professionals in America.Founded by Robert Daniels Sooty Bob in 1978 Chimney has grown from a one-man operation to a national network of six warehouses and a manufacturing plant. From its headquarters in Fairfield Iowa Chimney plays a major role in providing for the Chimney industry. Flue Goo is a multi-purpose furnace/refractory cement. It will bond masonry to masonr steel to steel and steel to masonry. Flue Good will withstand temperatures up to 3000 Degrees F. without cracking or shrinking. On the other end of the temperature spectrum Flue Goo is freeze/thaw stable; however it s still a good idea to bring it indoors in freezing weather. Flue Good contains no asbestos. It comes premixed and ready to use and is water-soluble for easy cleanup. Comes in three colors: black buff and gray. It s packed in 1/2 gallon 1 gallon or 3 1/2 gallon plastic tub. It is not for exterior use.