PTFE Anaerobic Threadlockers and Thread Sealants 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 near-universal chemical resistance; no elastic recovery, so it is used as a back-up or energised seal and is non-magnetic; the practical service range is approx. -200 °C to +260 °C.
Why Choose PTFE for Anaerobic Threadlockers and Thread Sealants
Chosen for chemical service and low friction rather than for elastic sealing. For anaerobic threadlockers and thread sealants, this matters when near-universal chemical resistance; no elastic recovery, so it is used as a back-up or energised seal is the primary requirement.
Mechanical & Physical Properties
| Grade designation | polytetrafluoroethylene (thermoplastic, not an elastomer) |
|---|---|
| Magnetic response | Non-magnetic |
| Service temperature | approx. -200 °C to +260 °C |
| Corrosion characteristic | Near-universal chemical resistance; no elastic recovery, so it is used as a back-up or energised seal |
Galvanic & Galling Considerations
Galvanic and galling behavior do not apply to anaerobic threadlockers and thread sealants in PTFE — 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 anaerobic threadlockers and thread sealants, consider an energised or spring-loaded PTFE seal where recovery is required, or FKM where the chemistry allows an elastomer. Elastomer selection is decided by the medium, the temperature range and whether the seal is static or dynamic — not by strength.
Sizes of Anaerobic Threadlockers and Thread Sealants Available in PTFE
| Grade | Removal | Typical use | Notes |
|---|---|---|---|
| low strength | hand tools | set screws, adjusting screws, small fasteners | up to about M12 |
| medium strength | hand tools | general assembly, machine screws | the usual default |
| high strength | heat and hand tools | studs, permanent assemblies | not for parts serviced in the field |
| thread sealant grade | hand tools | tapered pipe threads, hydraulic fittings | seals rather than locks |
| retaining compound | heat | bearings, bushes, cylindrical fits | not a thread product |
Dimensions are independent of the material: every size above is available in PTFE.
Custom manufacturing · Made to drawing
Need this seal in a grade that is not listed?
Ptfe is one of the grades the catalog describes. A special seal is almost always a compound change rather than a size change — the same dimensions in a material that survives the medium.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
