| Mechanical properties | SRPP | GRPP |
| Density (g/cm3) | 0.92 | 1.5 |
| Tensile modulus (GPa) | 4 | 14 |
| Tensile strength (MPa) | 120 | 300 |
| Flexural modulus (GPa) | 3.5 | 12.5 |
| Fibre volume fraction (%) | - | 55% |