MoreFire Mortar
ACCUMETRIC, LLC
BOSS 139 Fire Mortar is a non-combustible silicate cement that can withstand extremely high temperatures. Formulated for repairing chimneys and fireplaces and sealing wood-burning stoves and appliances, this product has strong adhesion and sets to become rock hard when fired. The product exceeds ASTM E-136 and can withstand temperatures of up to 3,000 degrees F. It can be used in wood-frame construction where an ASTM E-136 non-combustible sealant is specified and where allowed by the building code. This includes sealing around pipes, ducts, vents and chimneys at ceiling and floor level before drywall is applied.
ACCUMETRIC, LLC
BOSS 139 Fire Mortar is a non-combustible silicate cement that can withstand extremely high temperatures. Formulated for repairing chimneys and fireplaces and sealing wood-burning stoves and appliances, this product has strong adhesion and sets to become rock hard when fired. The product exceeds ASTM E-136 and can withstand temperatures of up to 3,000 degrees F. It can be used in wood-frame construction where an ASTM E-136 non-combustible sealant is specified and where allowed by the building code. This includes sealing around pipes, ducts, vents and chimneys at ceiling and floor level before drywall is applied.
