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| Refractory material-Vermiculite |
| Vermiculite |
Technical Data
| Item | ARV-40 |
| SiO2 % | 37-42 |
| MgO % | 11-23 |
| Impurities % ≤ | 3 |
| Mohs hardness | 1-1.5 |
| Bulk density(g/cm3) | 200-280 |
| After the expansion of bulk density | 130-300 |
| Melting Point( ℃) | 1320-1370 |