Meeco's Red Devil Grey Furnace Cement & Fireplace Mortar, 1 Pint is a versatile, premixed high-temperature silicate designed to bond and seal both masonry and metals. Withstanding working temperatures up to 2,000 degrees Fahrenheit, this mortar is i for patching or repairing cracked or chipped firebrick and mortar. It is for resetting and cementing furnaces, stoves, chimney collars, boilers, and duct work, providing a reliable and durable seal. Please note, this product is not intended for exterior use and comes conveniently ready to use in a 1 pint bucket container. Model Number: