Drystone is a fast-setting gypsum cement that provides strong, durable casts without the need for dryers, when mixed at the recommended use consistency. It also provides an environmentally-sound alternative to resin-based products and casts with reduced breakage compared to conventional plaster and gypsum cement products.Properties No drying required - cast, paint, package, and ship in one day. Excellent duplication of fine detail. Can be painted or decorated within 2-4 hours of demolding. Highest compressive strength of any gypsum product offered. Highest early "green strength" of any gypsum product offered. Excellent alternative to polyester resin. Use for solid cast pieces. Technical Properties: Use Consistency (18-20 parts of water by weight per 100 parts plaster) Dry Compressive Strength (oven-dried) 16,000 psi Dry Compressive Strength (two day ambient) 10,000 psi Maximum Setting Expansion 0.275% Density Wet 130.0 lb/ft3 Density Dry 128.0 lb/ft3 Working Time (After Mix) 5 - 10 min. Demold Time (After Set) 15 - 25 min. Documentation Technical Bulletin USG Drystone Mix Procedure
