Refractory mortar provides heat resistance and helps maintain consistent thermal properties in high-temperature environments such as incinerators, crematoriums, and other firebox applications. 

There are two forms of refractory mortar:

The first is Heat Stop 50, a dry-mix 50-lb. bag of refractory mortar designed for use with firebrick. The second is Heat Cast 40, a 40-lb. bag of refractory castable used to cast custom surfacing for incinerators and other high-temperature furnace applications. 

Most hazardous waste incinerators run at 1,800-2,200*F which is perfect for these mortar products. 

his refractory mortar meets ASTC C-199, ASTM C-1283, & ASTM E-136 standards, along with the NFPA-211 residential building code.

Handles high temps, more than 2,000 degrees.

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Bags sold individually