USG Hydro-Stone® Brand Gypsum Cement is an excellent product for manufacturing solid cast architectural, art novelty and statuary products. USG Hydro-Stone Gypsum Cement is extremely hard, has high compressive strength, and has high water absorption resistance while giving extremely fine detail duplication.
 
Normal Consistency (lbs. water/100 lbs. product) 32
Dry Compressive Strength 10,000 psi