USG Ultracal 30 5lb Box

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