USG: UltraCal 30 Gypsum Cement
Traditional tooling gypsum cement, specially formulated for close tolerance tooling where extreme accuracy and surface hardness are required.
Superior tooling gypsum cement features exceptional strength and hardness. Low-absorption, designed for use in case or 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.