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USG Terra Alba No. 1 is a dihydrate form of calcium sulfate produced by fine grinding and air-separating high-purity, white gypsum containing 20% water of crystallization. It releases combined water as it is heated above 50°C, releasing 75% of water as temperatures reach 180°C (only when temperatures exceed 400°C is water totally removed). USG Terra Alba No. 1: Can be used as a flame-retarding filler when processed at room temperature Contributes to desired expansion, green strength and controlled set in specialty cement applications Is a relatively soft material (2-3 Mohs scale hardness) contributing to minimal wear on equipment.
USG TERRA ALBA No.1 CALCIUM SULFATE FILLER
• Flame-retarding filler when processed at room temperature
• High purity
• White in color
• Low abrasion to processing equipment