EPDM (ethylene propylene diene vulcanized) vs FFKM Perfluoroelastomer (Kalrez 4079)
Property comparison of EPDM (ethylene propylene diene vulcanized) and FFKM Perfluoroelastomer (Kalrez 4079), both rubber elastomer.
| Property | EPDM (ethylene propylene diene vulcanized) | FFKM Perfluoroelastomer (Kalrez 4079) | Difference |
|---|---|---|---|
| Tensile strength | 14 MPa | 17 MPa | +21% |
| Elongation | 400 % | 150 % | -63% |
| Poisson ratio | 0.5 | 0.48 | -4% |
| Density | 1,150 kg/m³ | 2,020 kg/m³ | +76% |
| Coefficient of thermal expansion | 0.00017 1/K | 0.00036 1/K | +112% |
Difference is FFKM Perfluoroelastomer (Kalrez 4079) relative to EPDM (ethylene propylene diene vulcanized). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM
- standard
- ASTM
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