Buff Fireplace Mortar - 10.3 oz Cartridge

This buff-colored, pre-mixed high-temperature cement is designed for bonding and sealing masonry and metal surfaces exposed to heat up to 2000°F. Ideal for patching cracks in firebrick and mortar, it’s also effective for installing or repairing stoves, furnaces, chimney collars, boilers, and ductwork. Formulated for indoor use, it cures in 24 hours at temperatures of 60°F or higher and can be painted once fully cured. Convenient and durable, it’s a dependable choice for high-heat applications.