HYDRO-STONE Gypsum Cement is one of the hardest and strongest HYDROCAL Brand products. HYDRO-STONE is recommended for producing high-quality novelty and statuary castings requiring extremely hard surfaces.Hydrostone is hard and strong. Cannot be worked under a template. Used in high-quality art novelty and statuary castings.USG Material Calculator PropertiesTechnical Properties Mix Ratio by Weight 32 parts water: 100 parts powder Cure Time (hand mix) 17-20 min Compressive Strength 10,000 psi Technical Properties: Maximum Setting Expansion 0.240%Density Wet 119.4 lb/ft3Density Dry 108.7 lb/ft3 Hard and strong with high water absorption resistance. Works well in plaster and most flexible moulding compounds. Used in high-quality art novelty and statuary castings. Extremely fine detail duplication. Low viscosity slurry for filling multiple molds at one time Media USG PLASTER AND GYPSUM CEMENTS MIXING PROCEDURE Documentation Technical Bulletin Related ProductsRELATED PRODUCTS:Mixing Equipment Rubber Silicones Rubber Polyurethanes
