Ultracal 30 - Gypsum Cement

Superior tooling gypsum cement features exceptional strength and hardness. Low-absorption, designed for use in case molds. Ultracal® 30 Gypsum Cement is a traditional tooling gypsum cement, specially formulated for close tolerance tooling. Low absorption 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.