Abrasives - Grit Sizes
Comparison of FEPA standard grit sizes with their characteristic grain dimensions.
Abrasive micropowders are available in various grit sizes (corresponding to specific micron values).
| SIZE (F) | MEAN GRIT SIZE (in mikrons) | |
|---|---|---|
| From | To | |
| 8 | 2800 | 2360 |
| 10 | 2360 | 2000 |
| 12 | 2000 | 1700 |
| 14 | 1700 | 1400 |
| 16 | 1400 | 1180 |
| 20 | 1180 | 1000 |
| 22 | 1000 | 850 |
| 24 | 850 | 710 |
| 30 | 710 | 600 |
| 36 | 600 | 500 |
| 40 | 500 | 425 |
| 46 | 425 | 355 |
| 54 | 355 | 300 |
| 60 | 300 | 250 |
| 70 | 250 | 212 |
| 80 | 212 | 180 |
| 90 | 180 | 150 |
| 100 | 150 | 125 |
| 120 | 125 | 106 |
| 150 | 106 | 75 |
| 180 | 90 | 63 |
| 220 | 75 | 53 |
| 240 | 44,5 microns | +- 2% |
| 280 | 36,2 microns | +- 1,5% |
| 320 | 29,2 microns | +- 1,5% |
| 360 | 22,8 microns | +- 1,5% |
| 400 | 17,3 microns | +- 1% |
| 500 | 12,8 microns | +- 1% |
| 600 | 9,3 microns | +- 1% |
| 800 | 6,5 microns | +- 1% |
| 1000 | 4,5 microns | +- 1% |
| 1200 | 3,0 microns | +- 1% |
