FFKM Perfluoroelastomer (Kalrez 4079) vs Fluorosilicone Rubber (FVMQ vulcanized)
Property comparison of FFKM Perfluoroelastomer (Kalrez 4079) and Fluorosilicone Rubber (FVMQ vulcanized), both rubber elastomer.
| Property | FFKM Perfluoroelastomer (Kalrez 4079) | Fluorosilicone Rubber (FVMQ vulcanized) | Difference |
|---|---|---|---|
| Tensile strength | 17 MPa | 9 MPa | -47% |
| Elongation | 150 % | 250 % | +67% |
| Poisson ratio | 0.48 | 0.5 | +4% |
| Density | 2,020 kg/m³ | 1,430 kg/m³ | -29% |
| Coefficient of thermal expansion | 0.00036 1/K | 0.00022 1/K | -39% |
Difference is Fluorosilicone Rubber (FVMQ vulcanized) relative to FFKM Perfluoroelastomer (Kalrez 4079). 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 D1418
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