USG Hydroperm® Metal Casting Plaster

Specially formulated metal casting plaster that incorporates an air-entraining agent.

Used for the precision casting of non-ferrous metals and alloys.

Customer Service Center
1-800-950-3839
7 a.m. - 6 p.m. CT, Mon - Fri

USG4YOU Tech Support
1-800-USG4YOU (1-800-874-4968)
7:30 a.m. - 4 p.m. CT, Mon - Fri

Email USG Technical Support

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features and benefits

USG Hydroperm® Metal Casting Plaster is a specialized plaster used for fabricating permeable plaster molds. USG 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. USG Hydroperm® Metal Casting Plaster:

  • Is formulated with USG 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

Customer Service Center
1-800-950-3839
7 a.m. - 6 p.m. CT, Mon - Fri

USG4YOU Tech Support
1-800-USG4YOU (1-800-874-4968)
7:30 a.m. - 4 p.m. CT, Mon - Fri

Email USG Technical Support

Design & Specification
Assistance
Find your local architectural representative

Frequently Asked Questions