USG No. 1 Pottery Plaster is the best material available for sanitaryware and dinnerware casting. USG No. 1 Pottery Plaster is formulated for long life and reduced breakage which leads to stronger molds. USG No. 1 Pottery Plaster is available with or without thermal shock additive.
Normal Consistency (lbs. water/100 lbs. product) 70
Dry Compressive Strength 2,400 psi