Alsey Dry Milled Fireclay

Alsey Dry Milled Fireclay

Raw ground plastic dry milled fireclay


Raw material used by artisans or in commercial applications either as a heat resistant layer or as an additive.


Do NOT use as a mortar in residential fireplace construction.  This product no longer meets building codes for residential fireplace construction. Please see FIREPLACE BULLETIN: Refractory Mortar Standards and Specifications for appropriate alternatives.

Dry Milled Fireclay is "Heat Setting" and depends upon high temperature to develop a ceramic bond; these temperatures are not achieved in fireplaces.

Job-site prepared fireclay mixes containing Portland do not meet national or state building codes. The addition of Portland cement reduces the service temperature of this product well below temperatures achieved in fireplaces and thus does not satisfy building code requirements. Portland cement neither resists the temperature cycling, nor does it possess the necessary acid resistance. As a result, we have developed Alsey Air-Set Refractory Fireplace Mortar and Flue-Set Non-Water Soluble Refractory Mortar to meet these requirements.  

Product Details

Inventory Number Product Description Size Pallet Count
3A1050 Alsey Dry Milled Fireclay--20 Mesh 50 lb. bag 64 each