Heat Stop® Refractory Mortar

Heat Stop® products are used in new installations of firebrick and clay flue lining and also used for repairs. Heat Stop ® provides resistance to temperatures well above 2,000° F and meets all building codes.

Heat Stop® 50 Dry Mix ist the best mix for both firebrick and flue installations. Fireplace masons prefer its workability and texture. It sets up fast in wet climates, no efflorescence. Non-water soluble in service. Long shelf live and will not freeze in transit. Ready to use- just add water. Add any mortar color.