Gray Fireplace Mortar – 10.3 oz Cartridge

The 10.3-oz Cartridge of Gray Fireplace Mortar is formulated especially to patch fireplace fireboxes and to bond firebrick to firebrick. It’s a silicate product that, when fire-cured, sets rock hard. This gray mortar cartridge matches the color of many different fireplaces, and other colors are available separately. It’s easy to apply with a standard, compact caulking gun. The product is resistant to the high heat associated with a fireplace, which can reach up to 2,000 degrees Fahrenheit.
Gray Fireplace Mortar, 10.3-oz Cartridge:
10.3-oz cartridge of firebrick mortar
Formulated especially to patch fireplace fireboxes and to bond firebrick to firebrick
Withstands temperatures of up to 2,000 degrees F
Sets rock hard
Fits into standard, smaller, caulking gun models (sold separately)
Gray color matches mortar found in many fireplaces
Ideal for use indoors