CR Rubber vs. PMQ Rubber
Both CR rubber and PMQ rubber are thermoset elastomers (rubber).
For each property being compared, the top bar is CR rubber and the bottom bar is PMQ rubber.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 380 | |
| 480 |
| Tensile Strength: Ultimate (UTS), MPa | 11 | |
| 8.0 |
Thermal Properties
| Glass Transition Temperature, °C | -45 | |
| -130 |
| Maximum Temperature: Autoignition, °C | 410 | |
| 410 |
| Maximum Temperature: Decomposition, °C | 350 | |
| 460 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 220 |
| Specific Heat Capacity, J/kg-K | 1120 | |
| 1590 |
| Thermal Conductivity, W/m-K | 0.19 | |
| 0.23 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.5 | |
| 1.2 |
| Limiting Oxygen Index (LOI), % | 26 | |
| 32 |
Common Calculations
| Strength to Weight: Axial, points | 1.9 | |
| 1.9 |
| Strength to Weight: Bending, points | 7.1 | |
| 7.4 |
| Thermal Diffusivity, mm2/s | 0.11 | |
| 0.12 |