USG Ultracal® 30 Gypsum Cement

Superior tooling gypsum cement features exceptional strength and hardness.

Low-absorption, designed for use in case molds.

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 Ultracal® 30 Gypsum Cement is a traditional tooling gypsum cement, specially formulated for close tolerance tooling. Low absorption USG Ultracal® 30 Gypsum Cement:

  • Is recommended where extreme accuracy and surface hardness are required (i.e. duplicator molds)
  • Provides the lowest expansion of any rapid-setting gypsum cement
  • Is ideal for splash-casting molds and models for phenolic, polyester and epoxy resins
  • Sets 25-35 minutes after machine mixing
  • Requires 38 parts water by weight per 100 parts plaster

NOTE - For best storage results, keep indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high. 

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