Insulating Castable Refractory Dry Mix for Ovens - 50lb bag evolveafter If you prefer a matte

If you prefer a matte or flat finish

but rather a Castable Refractory used for making custom slab surfaces for incinerators and other high-temperature furnace applications

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All mulch bags may have different packaging depending on the manufacturing facility

Insulating Castable Refractory Dry Mix for Ovens - 50lb bag evolveafter If you prefer a matteInsul Cast is the ideal insulating castable refractory solution over fired bread or pizza ovens and behind other high temp fireboxes or firebrick applications. This product typically goes behind the firebox to provide an insulating effect so that heat can be better refracted back into the heating area and contained. The primary applications Insulator on top of a pizza or bread oven dome Behind a firebox firebrick wall Under the sub hearth or firebrick