USG Hydrocal White Gypsum Cement
Sets in 25-35 minutes
USG Ultracal 30 Gypsum Cement
This is the ultimate gypsum cement tooling medium. When extreme accuracy and greater surface hardness are required. 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. It is also noncombustible. When properly used, it is safe to handle and easy to work with. Always follow handling and use directions and safety warnings on the package.
Do not mix with your hands