| Wt.(%) of fiber in composites | Hardness for continuous aligned fiber orientation | Hardness for continuous bidirectional fiber orientation |
| 0% | 502 | 502 |
| 5% | 534.11 | 514.83 |
| 10% | 492.99 | 472.77 |
| 15% | 449.83 | 439.50 |
| 20% | 387.78 | 376.03 |