ETFE (Ethylene-Tetrafluoroethylene Tefzel) vs FEP (Fluorinated Ethylene Propylene Teflon FEP)
Property comparison of ETFE (Ethylene-Tetrafluoroethylene Tefzel) and FEP (Fluorinated Ethylene Propylene Teflon FEP), both polymer.
| Property | ETFE (Ethylene-Tetrafluoroethylene Tefzel) | FEP (Fluorinated Ethylene Propylene Teflon FEP) | Difference |
|---|---|---|---|
| Tensile strength | 41 MPa | 20 MPa | -51% |
| Elongation | 300 % | 300 % | 0% |
| Poisson ratio | 0.4 | 0.48 | +20% |
| Density | 1,700 kg/m³ | 2,150 kg/m³ | +26% |
| Thermal conductivity | 0.24 W/m·K | 0.25 W/m·K | +4% |
| Specific heat | 1,020 J/kg·K | 1,050 J/kg·K | +3% |
| Coefficient of thermal expansion | 0.00009 1/K | 0.000135 1/K | +50% |
Difference is FEP (Fluorinated Ethylene Propylene Teflon FEP) relative to ETFE (Ethylene-Tetrafluoroethylene Tefzel). 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
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators