PTFE · EN ISO 13000-1
PTFE is presented here as Polytetrafluoroethylene (PTFE) under EN ISO 13000-1. Requirements and designation for unfilled PTFE semi-finished products, including sheet used to manufacture sealing components.
Polytetrafluoroethylene
EN reference: PTFE
Data edition: EN ISO 13000-1:2021
PTFE PTFE
PTFE is presented here as Polytetrafluoroethylene (PTFE) under EN ISO 13000-1. Requirements and designation for unfilled PTFE semi-finished products, including sheet used to manufacture sealing components.
Data edition: BS EN ISO 13000-1:2021. Classes below are property classifications of PTFE, not additional material pages. Test-piece preparation and property measurements are covered by BS EN ISO 13000-2:2021. Modified and filled PTFE are not included in this unfilled-PTFE page.
Related grades
1 material references with EN ISO 13000-1 data.
PTFE properties
Select a table to compare requirements.
| Requirement | Requirement |
|---|---|
| Polymer | Unfilled PTFE |
| Pigment | Up to 1.5% by mass |
| Resin source | Virgin, reprocessed or recycled, as designated |
| Type S | Dimensionally stabilized |
| Type P | As processed |
Material classification for unfilled PTFE; pigments are limited to 1.5% by mass.
| Class | Tensile strength (MPa) | Elongation at break (%) |
|---|---|---|
| Property class 1 | ≥25 | ≥280 |
| Property class 2 | 20 ≤ Rm < 25 | 200 ≤ A < 280 |
| Property class 3 | 15 ≤ Rm < 20 | 150 ≤ A < 200 |
| Property class 4 | 10 ≤ Rm < 15 | 75 ≤ A < 150 |
| Property class 5 | <10 | <75 |
Density: 2.13–2.19 g/cm³; reprocessed resin and blends: 2.14–2.23 g/cm³. Type S dimensional change is limited to 0.5%. Hardness requirements, where specimen geometry permits measurement: ball indentation above 23 MPa or Shore D above 54.
Specification source
Technical data above is identified by its source edition: EN ISO 13000-1:2021.