Formula 51 can be parged, troweled, or hand packed over any brick, block, or stone surface exposed to high temperatures such as smoke chambers, ash pits, vent connections, and more. Formula 51 meets and or exceeds all of the national and local building codes for new construction and repairs of masonry fireplaces and chimneys. Not suitable for food storage or food preparation areas. Meets ASTM C-199 (Medium Duty) and is non water-soluble when dry.
WARNING: This product can expose you to chemicals including quartz and titanium dioxide, which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.