Ultracal 30 10 Lb Pail (220147)
ULTRACAL 30 was designed to give the pattern making industry the ultimate in a gypsum cement-tooling medium. Packaged in 10 Lb pail.
ULTRACAL 30 Gypsum Cement is a super-strength gypsum cement recommended where extreme accuracy and greater surface hardness are required, as in duplicator models. ULTRACAL 30 cement has the lowest expansion of any rapid-setting gypsum cement available. Has a gradual set and long period of plasticity. Ideal for splash-casting molds and models for phenolic, polyester and epoxy resins.
Technical Properties: * Use Consistency (38 parts of water by weight per 100 parts plaster) * Dry Compressive Strength 6,000 psi * Maximum Setting Expansion 0.080% * Density Wet 115.0 lb/ft3 * Density Dry 99.0 lb/ft3 * Set Time (Hand Mix) 25 - 35 min.