GlinArt - GYPSUM FOR MOLDS 5 kg
GlinArt gypsum for molds is a formulated gypsum for the production of molds for ceramics. It is used in: sanitary ceramics, ceramic dishes, industrial elements, art & decoration, metal casting,...
Price with VAT:
10,98 €
TECHNICAL INFORMATION
Gypsum: water ratio
| |
Gypsum : water ratio (weight) | 1.45 : 1 (possible from 1.20:1 to 1.45:1) |
Water : gypsum ratio (weight) | 69 % |
Gypsum: water ratio (weight) | 100 : 69 mixing time 2-4 minutes |
Chemical properties
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Chemical name | Calcium sulfate hemihydrate |
Chemical composition | CaSO4.1/2H2O |
Setting speed
| |
Vicat ring fluidity (cm) | 17-22 |
Setting start (minutes) | 10-15 |
Linear expansion (%) | 0.2 |
Mechanical properties
| |
Flexural strength (MPa) | 5.6 |
Brinell hardness (MPa) | 21 |
Compressive strength (MPa) | 12 |
Volume porosity (%) | 50 |
Physical properties
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Particle size (% residue) | 4% over 90 µm |
Bulk density (g/cm³) | 800 |
