- Smooth application. - Certified high heat performance. - High purity ingredients are safer and more dependable. - For use on furnaces, fireboxes, boilers, stoves, ovens, flue pipes, kilns, chimneys, ducts, combustion chambers, and many other furnace and refractory appplicatons. - Aheres to iron, wood, stone, and masonry surfaces, - Makes non-porous, fire proof and acid proof seals. - Regular body, east to apply, non-runny consistency. - Will not freeze in temperature to 10 Degrees Fahrenheit.