High-Heat Mortar

Beat The Heat

When you’re building fireplaces, fire pits, ovens, or any other high-temperature project, High-Heat Mortar is your mix. Formulated to withstand temperatures up to 2550°F, this high-strength, highly workable mix is perfect for setting fire brick, clay masonry or as a parge coat.

Product Details

  • Use for laying masonry or fire brick, or as a parge coat
  • Performance for temperatures up to 2550°F
  • Applications from 1/8" - 3/8"
  • Rated for high-temperature applications in 7-10 days
  • Yields 40-50 standard fire brick with 1/4" joints

Application Depth

1/8" - 3/8"