Superior tooling gypsum cement features exceptional strength and hardness. Low-absorption, designed for use in case molds.

Features

• Ultracal® 30 Gypsum Cement is a traditional tooling gypsum cement, specially formulated for close tolerance tooling.
• Low absorption
• 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.

50 lb bag