Specialized plaster used for fabricating permeable plaster molds.
Overview
Specially formulated metal casting plaster that incorporates an air-entraining agent. Used for the precision casting of non-ferrous metals and alloys.
MAIN FEATURES
Hydroperm Metal Casting Plaster is a specialized plaster used for fabricating permeable plaster molds. Hydroperm Metal Casting Plaster dries with a porous structure of small, uniform, interconnected cells just beneath its surface, offering channels through which steam or other mold gases can escape during the metal-casting operation. Hydroperm Metal Casting Plaster:
Is formulated with HydrocalL gypsum cement
Offers a smooth mold surface, carvability and controlled permeability
Is ideal for non-ferrous castings
Sets 12-19 minutes after mixing
Requires 100 parts water by weight per 100 parts plaster