Polymers
PTFE, unfilled
Polymer / filler family, not a unique commercial grade. The cited named product is an example only.
Identity / state reference
What distinguishes this material
Compression-processed stock and the final sintering history matter. Creep and seal geometry must be assessed separately from chemical resistance.
- Designation in this reference
- Polytetrafluoroethylene (PTFE)
- Forms covered by the sources
- Stock-shape rod / plate; confirm supplier process and dimensions
- States to distinguish or confirm
- Virgin / modified resin identified
- Compression processing, sintering and final dimensional condition recorded
- Temperature and exposure
- Melting point, glass-transition temperature, heat-deflection test and long-term service rating are different quantities. Use a grade-specific value with its load, duration and test conditions.
Other search names in these sources
virgin PTFE · TECAFLON PTFE natural
Read the scope above: a source’s related product name is not a blanket interchangeability statement.
Property evidence for a stated condition
No condition-specific numerical table is reproduced here
The linked sources establish the identity and the stated product/state scope. Obtain the row for your actual form, section, treatment and test conditions before adopting strength, hardness or a thermal limit.
Resolve these conditions next
- Which manufacturer, exact grade, filler fraction and stock form are specified?
- What moisture conditioning, direction, test method and service temperature apply?
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Sources and what they establish
Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.
Ensinger PTFE materials and stock shapes
Virgin TECAFLON PTFE and GF25 products; PTFE family identity and processing route.
Ensinger PTFE materials and stock shapes ↗Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
- Replace the old 0.05 friction constant and lowest-of-any-solid-polymer claim.
- Chemically inert is too broad to establish compatibility with every medium and condition.
Other references in Polymers
Related references, not equivalent substitutes.