Heat Stop 50 Refractory Mortar developed for installation of firebrick and clay flue lining in masonry fireplace and chimney installations. This is the product of choice for masonry bread ovens, fireplace and chimney installations (interior or exterior) or where moisture may be present in masonry chimney installation.
This product is made from high temperature cements and carefully selected aggregates that will not expand or tear the mortar apart when heated. Once dried, this mortar is non-water soluble and more acid resistant than any other type of product used in these applications.
• Meets and exceeds ASTM C-199, ASTM C-1283, ASTM E-136.
• Meets and exceeds all local and national building codes including NFPA-211 and International Residential Codes, (1RC) and International Building Code (1BC) and etc.
• Color with masonry mortar color if desired. Follow color manufacturer’s instructions as if using a regular masonry mortar.
• Good for applications well over 2,000°F.
• For estimating purposes approximately 50 lbs. will lay up 100 firebricks (2 ½ inch thick) if joint thickness is 1/16 to 1/8 inch as recommended.
• Joint thickness up to 1/2 inch is acceptable with this product and is quite common.
Manufacturer: Heat Stop, LLC
Available in 50 lb. bags.