Our Fire Brick and mortar consists of several types that are distinguished by the temperature resistance. Start SK-30 to SK-38 Castable Refrcactory Products available from C-12 to C-18. There are also castable product for High Strength and castable for repair by gunning or trowel. We also offer insulation products such as Insulation Brick, Insulation Mortar and Insulating Castable.