This die stone has a distinguished toughness and a remarkable satin-smooth finish that works well with all types of impression materials. Low expansion makes it a truly unique die stone. Indication for use: Crown and bridge; porcelain; implants; cast-partial; high precision cases. Color: White Setting Time: 10 Minutes Water/Powder Ratio: 23ml/100g Compressive Strength: 15,000psi Expansion: 0.09%-0.11%