Refractory Cement


Concrete Chimney Block | NYS Tek Spec 3.5 | Clay Chimney Products

HEAT STOP II & HEAT STOP 50 Refractory Cement

Formulation is similar to each other and developed for installation of firebrick and clay flue lining in masonry fireplace and chimney installations. They are 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.

HEAT STOP-II is provided in a 10 lb. pail only.

HEAT STOP-50 is provided in a 50 lb. bag only.

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.

Good for applications well over 2,000°F.

Spec Sheet


Download MSDS


Please contact us for current pricing and availability.