10 lb. Refractory Mortar

Tenon Refractory Mortar is a high-performance, dry preblended mortar engineered for extreme heat applications. Ideal for fireplaces, fire pits, pizza ovens, barbeques, and chimney installations, it securely bonds firebrick and clay flue liners while withstanding intense temperatures that destroy ordinary mortars. Formulated with specialized cements and aggregates, it delivers exceptional thermal resistance and durability, meeting ASTM C199 requirements to resist temperatures up to 2,550°F (1400°C). Code-approved and trusted for high-heat masonry assemblies.

• Good for applications up to 2550°F (1400°C)
• Meets all requirements of ASTM C199
• Great for laying fire brick or clay masonry, constructing or tuckpointing fireplaces, barbeques, and chimneys, outdoor fireplaces, and fire pits
• Use to set clay flue liners and for parging of smoke chambers
• Preblended for consistency, just add water to mix