Heat Stop 50 Refractory Mortar
Heat Stop 50 is the ideal high-temperature refractory mortar solution. This product is great for clay flue linings, laying firebricks, masonry ovens, interior and exterior chimneys, and fireplace applications.
This 50-pound pail of dry compound is mixed with water to create 60 lbs of mortar that will lay up to 100x 2-1/2" thick bricks with joints of 1/16 to 1/8" thick, and can accommodate joints up to 1/2" thick.
Also available in 50 lb. wet premix pail that is ready to install.
This refractory mortar meets ASTC C-199, ASTM C-1283, & ASTM E-136 standards along with the NFPA-211 residential building code.
Handles extremely high temps, more than 2,000 degrees.
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50 lb Bags and Pails sold individually