Natural gypsum which is extremely suitable for precision works. its high degree of hardness provides good trimmability & the outstanding scratch & pressure resistance are ideal for the production of crowns bridges & partial dentures.
Recommendation: Crown & Bridge models, implant models, master models with precious/non-precious alloys, control models. 

• Powder to water ratio (by weight): 100:22
• Initial setting time: 11-13 minutes
• Linear expansion: 009%
• Compressive strength, after 1 hour: 54MPa
• Compressive strength, dry: 80MPa