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Gypsum Snow Rock Special Type IV with exceptional quality and extreme hardness.
SNOW ROCK STONE WITH SUPERIOR QUALITY
SNOW ROCK STONE Type IV gypsum is an extremely hard gypsum for creating precise models for work and studies. This type of gypsum is exclusively made from the finest Alpha synthetic gypsum.
SNOW ROCK STONE Type IV gypsum can be mixed with a small amount of water (W/G = 20ml/100g), ensuring high model hardness for accurate detail reproduction.
* Very smooth surface and good coloration.
* Low expansion (0.09%) for making models without dimensional changes.
* No chipping or breaking during cutting, wear, or drilling.
Available in the following colors:
11-811 - Ivory - 1.5kg
11-812 - Ivory - 25kg
11-851 - Pink - 1.5kg
11-852 - Pink - 25kg
11-861 - Green - 1.5kg
11-862 - Green - 25kg
Ivory/Green/Pink
Available packaging options:
- 1.5kg packet
- 25kg box
• Physical Properties
ISO Type 4
Water-to-Gypsum Ratio: 20 ml of water to 100g of gypsum
Mixing Time:
1) 30~60 seconds manually
2) 20~30 seconds with a vacuum spatulator (350~450 RPM)
Working Time: 6 minutes
Setting Time: 10 minutes
Model Removal Time: 30 minutes
Expansion: 0.09%
Compression Strength:
1) Wet, 1 hour – 52 MPa (530 kgf/cm²) or 7,530 psi
2) Dry, 24 hours – 92 MPa (939 kgf/cm²) or 13,340 psi