| Items | Parameter | |
| Chemical Composition | SiO2+Al2O3 | 45~60 |
| CaO+MgO | 35~46 | |
| Fe2O3 | <3 | |
| Others(max) | ≤6 | |
| L.O.l (800±10 ℃,2H) | <1 | |
| Physical Properties | Color | off-white |
| Long-term Using Temperature | 600℃ | |
| Average Diameter (μm) | 6 | |
| Average Length (μm) | 300±100 | |
| Shot content (>125μm) | <1 | |
| Apparent density (g/cm3) | 2.9 | |
| Moisture Content(105 ℃±1℃,2H) | ≤2 | |