Rutland Castable Refractory Cement, High Temp Fireplace & Woodstove Fire Cement, for Casting Custom FireBrick, Refractory Panels & Fire Pits, Outdoor, Taupe, 12.5 Pound
Rated up to 2200 DegreeF (1200 DegreeC). used to cast custom shapes, to Replace worn-out firebrick or fill large holes in the Masonry firebox.