| Marchio | Composizione chimica % | Assorbimento di olio ml/100 g. | Bianchezza | Dimensione delle particelle | Umidità | ||||
| Al(OH)3 | SiO2 | Fe2O3 | Na2O | D50 | +325 mesh | % | |||
| (um ) | |||||||||
| H-WF-1 | 99.5 | 0.08 | 0.01 | 0.35 | 50 | 97 | 1.1±0.3 | 0.1 max | 0.5 |
| H-WF-8 | 99.6 | 0.05 | 0.02 | 0.3 | 35 | 96 | 8±2 | 0.5 max | 0.4 |
| H-WF-10 | 99.6 | 0.05 | 0.02 | 0.3 | 33 | 96 | 10±2 | 1.0 max | 0.3 |
| H-WF-14 | 99.6 | 0.05 | 0.02 | 0.3 | 32 | 95 | 15±3 | 12 max | 0.3 |
| H-WF-25 | 99.6 | 0.05 | 0.02 | 0.3 | 32 | 95 | 25±5 | - | 0.2 |
| H-WF-75 | 99.6 | 0.05 | 0.02 | 0.25 | 40 | 93 | 85±15 | - | 0.1 |
| H-WF-90 | 99.6 | 0.05 | 0.02 | 0.25 | 40 | 93 | 100±20 | - | 0.1 |