| Specifications (Standard NF P 18-545) | Grain size of fillers (%) | |||
| Basalt filler | Limestone filler | Sandstone filler | ||
| Percent by weight of passing to 2 mm (%) | 100 | 100 | 100 | 100 |
| Percent by weight of passing to 0.125 mm (%) | 85 - 95 | 92 | 92 | 92 |
| Percent by weight of passing to 0.063 mm (%) | 70 - 80 | 78 | 78 | 78 |