Designed for the patternmaking industry as the ultimate gypsum cement tooling medium. When extreme accuracy and greater surface hardness are required (as in duplicator models), use USG Ultracal 30 Gypsum Cement. It provides extremely low expansion properties, gradual set and a long period of plasticity.
Ideal for splash-casting molds and models for phenolic, polyester and epoxy resins, Ultracal 30 Gypsum Cement is water soluble – there is no need for organic solvents for cleanup. Ultracal 30 Gypsum Cement is noncombustible.