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LOG IN ACCOUNTA pre-mixed, fiber-reinforced, high temperature silicate mortar for setting, coating or repairing firebrick. Used extensively as the mortar between firebricks when building fireplace fireboxes. The ideal high-heat sealant for masonry-to-masonry joints less than 1/4 In. thick. Effective in resetting and cementing furnaces, stoves, chimney collars, boilers, and duct work. Not intended for exterior use.
Use to build new fireplace fire boxes and to replace broken firebrick for firebox repairs. Service temperature - 2200 deg. F. Size: 9" x 4-1/2" x 1-1/4". Meets ASTM C-20, C-16, C-113, C-38, C-133. Packaged 6 bricks per corrugated box.