CR Rubber vs. FKM Rubber
Both CR rubber and FKM rubber are thermoset elastomers (rubber). There are 8 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is CR rubber and the bottom bar is FKM rubber.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.5 | |
| 1.8 |
| Elongation at Break, % | 380 | |
| 300 |
| Glass Transition Temperature, °C | -45 | |
| -20 |
| Limiting Oxygen Index (LOI), % | 26 | |
| 51 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 220 |
| Strength to Weight: Axial, points | 1.9 | |
| 1.1 |
| Strength to Weight: Bending, points | 7.1 | |
| 4.7 |
| Tensile Strength: Ultimate (UTS), MPa | 11 | |
| 7.5 |