RUTLAND 63G Fireplace Mortar, Paste, Gray, 10.3 oz Cartridge

Rutland Product's Fireplace Mortar is perfect for repairing small chips or cracked firebrick, re-pointing mortar joints between firebricks, and bonding firebricks together. It is easy to apply with a caulking gun and will last for years to come. Adheres firmly when wet or cured, and can be fired immediately to provide a fine cure that strengthens the mortar to firebrick hardness. May also be used on wood burning stoves with a 2000 degree Fahrenheit limit. Joints should be as narrow as possible, preferably under 1/8". Because this is a high-temperature, ready-mixed product, proper attention to bond widths and heat cure is essential for successful installation. Fireplace Mortar is water-soluble until fire-cured, therefore a flue cap is strongly recommended to preclude joint washout.. It sets as hard and as strong as firebrick after curing and can withstand the high temperatures produced by a wood fire.