Gray Fireplace Mortar 10.3 Fluid Ounce

In Stock 
AWP32
-13%
Gray Fireplace Mortar

Not for exterior use, and should be applied 1/16 - 1/8" thick!

$13.99

List price: $15.99
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Fireplace mortar patches cracked or chipped firebrick and can also be used to fill in missing mortar joints. You can fire it immediately. First burn a low fire to dry fireplace mortar, then heat strongly to cure.The final cure requires 1200 Degrees to strengthen the mortar to firebrick hardness. Can also be used on any wood burning stove as well. 2000 Degree limit. Don’t use mortar outdoors for firebrick repair. Ideal for holes or cracks not wider than 1/8". Fill larger joints in layers. The mortar will dry as hard as firebrick if it is properly cured and will withstand 2000°F!

Click here to learn some DIY caulking tips.

California Proposition 65California Residents: Click here for more information on Proposition 65.

  • Material: Adhesive Caulk
  • Color: Gray
  • Size: 10.3 fl oz
  • Safety Standards: ASTM E136 and E72

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Last updated on November 20th 2018.