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ULTRACAL 30 Gypsum Cement þðèäè÷åñêè?óñëóãè Mixture of Calcium Sulfate Hemihydrate (Plaster of Paris, CaSO4¡¤_H2O) and Portland Cement 26499-65-0 Super-strength gypsum cement recommended where extreme accuracy and greater surface hardness are required, as in duplicator models. Harder and stronger than HYDROCAL A-11 and HYDROCAL B 11 cements, 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. It was designed to give the pattern making industry the ultimate in a gypsum cement-tooling medium. Appearance and Odor: Gray powder: low odor. Meltng Point: 1450'C - decomposes Solubility In Water: 0.2% Specific Gravity (H2O=1): 2.7 - 3.0 pH: 12 Hardening Time: Varies. Check usage and/or product specification data for each product. Á¦Ç°°ü·ÃºÐ¾ß ±âŸ United States Gypsum Co ÀüÈ­¹øÈ£ 888.874.2450 Æѽº¹øÈ£ 888.874.2348 ȨÆäÀÌÁö www.usg.com À̸ÞÀÏ samplit@usg.com ÁÖ¼Ò 125 South Franklin Chicago, IL 60606-4678 ÀÌÁ¦Ç°¿¡ ´ëÇØ µî·ÏµÈ ÆǸž÷ü°¡ ¾ø½À´Ï´Ù.