PAR vs. ECO Rubber
PAR belongs to the thermoplastics classification, while ECO rubber belongs to the thermoset elastomers (rubber). There are 10 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.
For each property being compared, the top bar is PAR and the bottom bar is ECO rubber.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 93 | |
| 21 |
| Density, g/cm3 | 1.2 | |
| 1.5 |
| Elastic (Young's, Tensile) Modulus, GPa | 2.0 | |
| 0.0075 |
| Elongation at Break, % | 50 | |
| 440 |
| Stiffness to Weight: Axial, points | 0.93 | |
| 0.0029 |
| Stiffness to Weight: Bending, points | 35 | |
| 4.5 |
| Strength to Weight: Axial, points | 16 | |
| 3.0 |
| Strength to Weight: Bending, points | 31 | |
| 9.5 |
| Tensile Strength: Ultimate (UTS), MPa | 67 | |
| 16 |
| Thermal Expansion, µm/m-K | 88 | |
| 650 |