EPDM PTFE Thread Seal Tape are supplied to our own published dimensions — this is a trade-series article rather than one covered by a dimensional standard, so confirm the figures against the part you are replacing. The grade provides excellent in water, steam, brake fluid and weathering; unsuitable for mineral oil and is non-magnetic; the practical service range is approx. -45 °C to +150 °C.
Why Choose EPDM for PTFE Thread Seal Tape
The water, steam and outdoor-weathering elastomer. For ptfe thread seal tape, this matters when excellent in water, steam, brake fluid and weathering; unsuitable for mineral oil is the primary requirement.
Mechanical & Physical Properties
| Grade designation | ethylene-propylene-diene rubber, typically 70 Shore A |
|---|---|
| Magnetic response | Non-magnetic |
| Service temperature | approx. -45 °C to +150 °C |
| Corrosion characteristic | Excellent in water, steam, brake fluid and weathering; unsuitable for mineral oil |
Galvanic & Galling Considerations
Galvanic and galling behavior do not apply to ptfe thread seal tape in EPDM — the relevant compatibility questions are chemical: confirm the elastomer against the fluid, the temperature and any cleaning agents in service, and check the gland or groove dimensions give the intended compression on the section.
Comparable Grades
For ptfe thread seal tape, consider NBR for mineral oil and hydraulic service, which EPDM does not tolerate, or silicone for a wider temperature range in static duty. Elastomer selection is decided by the medium, the temperature range and whether the seal is static or dynamic — not by strength.
Sizes of PTFE Thread Seal Tape Available in EPDM
| Colour | Density | Intended service | Notes |
|---|---|---|---|
| white | standard density | water and general plumbing | general purpose |
| pink | high density | water, larger threads | thicker, fewer wraps needed |
| yellow | high density | gas lines | gas-rated tape |
| green | oil-free, degreased | oxygen service | must be oxygen-clean |
| grey | with filler | stainless steel threads | reduces galling on stainless |
Dimensions are independent of the material: every size above is available in EPDM.
Custom manufacturing · Made to drawing
Need this seal in a grade that is not listed?
Epdm is one of the grades the catalog describes. Inside diameter, cross-section and compound are the three that matter, and the compound is chosen against the fluid and the temperature rather than the dimensions.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
