- Specially made for close-tolerance tooling
- Provides exceptional hardness and accuracy
USG Ultracal® Brand 30 Gypsum Cement is designed for the patternmaking industry as the ultimate gypsum cement tooling medium. It is recommended where extreme accuracy and greater surface hardness are required, as in duplicator models. USG Ultracal® 30 Gypsum Cement has the lowest expansion of any rapid-setting gypsum cement available.
Normal Consistency (lbs. water/100 lbs. product) 38
Dry Compressive Strength 6,500 psi