Our group SuperFine Wollastonite Powder was produced by high quality selected wollastonite mineral. Our wollastonite mineral the chemical composition are close to the theoretical value, high degree of purity, good acicular structure, low loss on ignition, low harmful ingredient (like MnO, Fe2O3) content, various indexes were superior to similar wollastonite mineral in domestic and overseas. High content of superfine mineral fiber, high brightness, good hiding rare, high suspension value, hardy heat-resistant strong and other function. It can partial replacement glass fiber, carbon black (white carbon black), titanium dioxide and other high end pigment and high-polymer reinforcing materials to improve the physical performance and significantly reduce the costs.
| Properties | Value | Remarks |
Brightness |
88±2 | DN-B |
| Loss on ignition | Less than 4 | 1000°C |
| Refractive Index | 1.63 | |
| PH | 9.9 | (100g/liter slurry) |
| Mohs Hardness | 4.5 | |
| Coefficient of expansion(mm/mm/℃) | 6.5×10-6 | ASTM 696 |
Particle Size D50(µm) |
3~16 | MICROSCOPIC |
| Aspect Ratio | 3:1-6:1 | MICROSCOPIC |
| Bulk Density(g/ml) | 0.8-0.85 | ASTM C87 |
| Melting Point (℃) | 1540 | ASTM D 1875 |
*attention please: all date shown are typical mean data value. These are not specification.
Application:Used in precision ceramic industry and art ceramic industry, ceramic glaze, ceramic rohling, metallurgical mould fluxes etc.
