SBR Rubber vs. RPU
SBR rubber belongs to the thermoset elastomers (rubber) classification, while RPU belongs to the thermoset plastics. There are 8 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is SBR rubber and the bottom bar is RPU.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.1 | |
| 1.2 |
| Elongation at Break, % | 530 | |
| 90 |
| Specific Heat Capacity, J/kg-K | 1880 | |
| 1750 |
| Strength to Weight: Axial, points | 3.4 | |
| 14 |
| Strength to Weight: Bending, points | 11 | |
| 28 |
| Tensile Strength: Ultimate (UTS), MPa | 14 | |
| 60 |
| Thermal Conductivity, W/m-K | 0.17 | |
| 0.19 |
| Thermal Diffusivity, mm2/s | 0.082 | |
| 0.090 |