CR Rubber vs. PS
CR rubber belongs to the thermoset elastomers (rubber) classification, while PS belongs to the thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is CR rubber and the bottom bar is PS.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 380 | |
| 1.8 to 40 |
| Tensile Strength: Ultimate (UTS), MPa | 11 | |
| 32 to 44 |
Thermal Properties
| Glass Transition Temperature, °C | -45 | |
| 100 |
| Maximum Temperature: Autoignition, °C | 410 | |
| 360 to 420 |
| Maximum Temperature: Decomposition, °C | 350 | |
| 320 to 330 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 70 |
| Specific Heat Capacity, J/kg-K | 1120 | |
| 1250 to 1400 |
| Thermal Conductivity, W/m-K | 0.19 | |
| 0.14 to 0.22 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.5 | |
| 1.0 |
| Limiting Oxygen Index (LOI), % | 26 | |
| 18 |
Common Calculations
| Strength to Weight: Axial, points | 1.9 | |
| 8.5 to 12 |
| Strength to Weight: Bending, points | 7.1 | |
| 22 to 26 |
| Thermal Diffusivity, mm2/s | 0.11 | |
| 0.11 to 0.15 |