Use To Seal & Repair Boilers, Furnaces, Fireboxes, Flue Pipes, Stoves, Ducts, Kilns, Chimneys, Combustion Chambers, & Many Other Furnace & Refractory Applications
Unique Patented Formula Meets OHSA Requirements Of Less Than 0.1% Of Crystalline Silica Content
Applies Exceptionally Smoothly
Can Be Used On Oil, Gas, Coal, & Wood-Burning Heating Systems, Adheres To Most Building Materials, Will Not Shrink, Crack, Or Crumble.