Properties
Typical characteristics of the resins we process.
Heat resistance simulation
Drag the burner temperature and watch what happens to PTFE compared with common sealing materials. PTFE keeps working continuously up to 260 °C because its carbon–fluorine backbone is one of the strongest bonds in organic chemistry.
- PTFE / Teflonlimit 260 °C · Stable — C–F bonds stay locked; no melting, no charring
- Nylonlimit 100 °C · Failed — Softens and loses strength
- Nitrile rubberlimit 90 °C · Failed — Hardens, cracks and burns
- PVClimit 60 °C · Failed — Distorts, then releases fumes
Why PTFE wins: fluorine atoms form a dense, tightly bound shield around the carbon chain. That shield needs far more energy to break than the C–H bonds in rubber or nylon, so PTFE stays dimensionally stable from −200 °C to +260 °C continuous (short peaks higher) instead of softening, charring or burning.
Need help selecting a compound? Read the PTFE vs Teflon filler-grade guide.
| Characteristic | Standard | Unit | Value |
|---|---|---|---|
| Shrinkage | D4894 – 07 | % | -3.5 / -4.5 |
| Tensile strength | D4894 – 07 | kg/cm | 250 – 310 |
| Tensile strength | D4894 – 07 | MPa | 25 – 30 |
| Elongation | D4894 – 07 | % | 280 – 380 |
| Thermal stability | D4894 – 07 | — | < 10 |
| Dielectric strength | D4894 – 07 | kV/mm | ~ 32 |
| Hardness | D-2240 | Shore D | 55 – 58 |
| Water absorption | — | % | 0 |
| Characteristic | Standard | Unit | Value |
|---|---|---|---|
| Shrinkage | D 4745 | % | 1.5 |
| Tensile strength | D 4745 | kg/cm² | 152 |
| Elongation | D 4745 | % | 86 |
| Hardness | D 785 | Shore D | 67 |
| Bulk density | D 4745 | g/l | 480 |
P.T.F.E. Teflon is the most versatile resin
- Totally inert to all chemicals — acidic or alkaline, organic or inorganic
- Excellent moisture resistance
- Insoluble in all solvents
- Anti-stick: the best commercial and industrial adhesives do not bond with it
- Lowest coefficient of friction
- Very low loss of electrical properties
Important note: the values above are given solely for reference. We do not undertake liability linked with the use of our materials based on the above parameters.