Moulding Plaster No.1 Pail 6Lb (220000)
A general purpose plaster suitable for architectural, art, and support shell (mother mold) applications. Packaged in 6 Lb pail.
Often referred to as 'Plaster of Paris' or soft plaster. Used for waste molds or temporary patterns where surface hardness and strength are not important. Screeds well under a template but is not as hard or strong as HYDROCAL cement.
Technical Properties: * Use Consistency (70 parts of water by weight per 100 parts plaster) * Dry Compressive Strength 2,000 psi * Maximum Setting Expansion 0.200% * Density Wet 99.0 lb/ft3 * Density Dry 69.0 lb/ft3 * Set Time (Hand Mix) 27-37 min.