MEECO'S RED DEVIL Meeco's Red Devil® 1/2 Pint Gray Furnace Cement and Fireplace Mortar

Furnace cement and fireplace mortar (gray colored) is a multipurpose cement for bonding and sealing both masonry and metals with working temperatures up to 2,000°F. It's pre-mixed, ready-to-use, high-temperature silicate and is designed for patching or repairing cracked or chipped firebrick and mortar. It's also effective in re-setting and cementing furnaces, stoves, chimney collars, boilers, and ductwork.