| Fabric specification | Compressive strength (N/mm2) | |
| First Crack | Ultimate Crack | |
| NF | 8.55 | 16.10 |
| WF 350 GSM | 13.3 | 17.40 |
| NWF 350 GSM | 18.4 | 19.50 |
| NWF 450 GSM | 18.4 | 19.51 |
| NWF 550 GSM | 18.5 | 19.53 |
| NWF 650 GSM | 18.6 | 19.55 |
| NWF 750 GSM | 18.6 | 19.56 |