PTFE · ISO 13000-1
PTFE is presented here as Polytetrafluoroethylene (PTFE) under ISO 13000-1. Requirements and designation for unfilled PTFE semi-finished products, including moulded sheet and skived sheet, tape and film.
Polytetrafluoroethylene
Designation: PTFE
Data edition: ISO 13000-1:2021
PTFE PTFE
PTFE is presented here as Polytetrafluoroethylene (PTFE) under ISO 13000-1. Requirements and designation for unfilled PTFE semi-finished products, including moulded sheet and skived sheet, tape and film.
Property classes are classifications of PTFE, not additional material grades. These limits apply to unfilled PTFE; filled or modified commercial compounds require their own formulation-specific assessment.
Related grades
1 material references with 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 requirements from Clause 1 and Clause 4. An elemental chemical-composition table is not specified for PTFE.
| Property class | Tensile strength (MPa) | Elongation at break (%) |
|---|---|---|
| 1 | ≥25 | ≥280 |
| 2 | 20 to <25 | 200 to <280 |
| 3 | 15 to <20 | 150 to <200 |
| 4 | 10 to <15 | 75 to <150 |
| 5 | <10 | <75 |
Table 9 property classes, tested using ISO 13000-2. Density: 2.13–2.19 g/cm³, or 2.14–2.23 g/cm³ for reprocessed resin and blends. Type S dimensional change ≤0.5%. Where geometry permits: ball indentation hardness >23 MPa or Shore D >54.
Specification source
Technical data above is identified by its source edition: ISO 13000-1:2021.