Our fireplace mortar is used for repairing chipped or cracked firebrick, re-pointing mortar joints between firebricks, and bonding firebricks together. It sets as hard and as strong as firebrick after curing. Passes ASTM E136 and E72. 10.3 oz Cartridge.
· Rated to 2000°F (1090°C)
· Requires heat to cure
· Paintable after curing
Approx. Coverage: 99 feet with 1/8” bead.