This patch is a dry-mix cement that cures chemically when mixed with water. Exceptional strength and heat resistance make this perfect for repairing firebrick, filling cracks and holes in masonry and replacing mortar.

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This patch is a dry-mix cement that cures chemically when mixed with water. Exceptional strength and heat resistance make this perfect for repairing firebrick, filling cracks and holes in masonry and replacing mortar.

  • Easily fix large holes or cracks in the masonry or mortar of your indoor or outdoor fireplace, stove, or other heating appliance
  • No heat cure required, making your project much easier
  • Dry mix formula makes enough to fill 15 cubic inches
  • Sets as hard as firebrick when it is cured
  • For interior or exterior use, rated to 2,200 F (1,200 C)
  • Easily fix large holes or cracks in the masonry or mortar of your indoor or outdoor fireplace, stove, or other heating appliance
  • No heat cure required, making your project much easier
  • Dry mix formula makes enough to fill 15 cubic inches
  • Sets as hard as firebrick when it is cured
  • For interior or exterior use, rated to 2,200 F (1,200 C)

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