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TEF® is transparent PTFE oil in spray, with high penetrating capacities and pressure resistance. It does not contain silicone; it is usable for temperatures from –20 °C to +195 °C, up to 230 °C for a short time.
| Colour | yellow |
| Solidification point | –20 °C |
| Ignition point | over 180 °C |
| Range of temperatures | –20 °C až 195 °C krátkodobě až 230 °C |
| Viscosity at 40 °C | about 40 mm2/s |
| Resistance to water | 0–90 °C |
| Protection against corrosion | corrosion degree 0 |
| Electric strength | at least 25 kV/2.5 mm |
