High-strength gypsum cement having very low setting expansion. Adapts to production on hard, strong, tough models of uniform and stable dimensional accuracy. Used for production of master models and Keller duplicating machines. Stiffening rate very rapid after setting action begins. Recommended for slurry casting technique.
Mix Ratio: 40-45 lbs. water/100 lbs. Hyrdocal White
Set time: 20-30 min
Selection of the water-to-plaster ratio must be based on the particular requirements of the set plaster. Variables in the shop environment and/or finished product requirements may necessitate a
new water-to-plaster ratio for optimal results.