11 LBS Refractory Mortar, 2600°F High Temperature Mortar for Dark grey

Align and tap brick to expel excess, ensuring full joints. This is because the thick mortar layer lacks internal support points. This must be avoided.Product ingredients:Aluminium Oxide – Al₂O₃ ≤65%Silicon Dioxide – SiO₂ ≤ 32%Ferric Oxide – Fe₂O₃ ≤2.2%K₂O/CaO/Na₂O/TiO₂ ≤0.8%️ 3-In-1 Professional Performance:→ Seal & Repair: Permanently fixes cracked flue tiles/liners.

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