USG Ultracal 30 Gypsum Cement - 50 lb Bag

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

Ultracal® 30 Gypsum Cementis a traditional tooling gypsum cement, specially formulated for close tolerance tooling.

Features

• 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

50 lb bag