PTFE: Synthetic Fluoropolymer FIber

Key Features of PTFE

  • Excellent chemical resistance
  • Excellent flame resistance
  • Excellent UV resistance
  • Excellent temperature resistance
  • Excellent abrasion resistance
  • FDA Approved versions available


PTFE is a synthetic fluoropolymer that was accidentally discovered by Roy Plunkett of DuPont in 1938. In 1941, the polymer was trademarked under the name Teflon™. Fibers have been produced from the PTFE polymer since the 1950’s.


PTFE fibers are typically produced using two different methods. The first method is matrix-spun, in which the fiber produced is round and brown in color. The second method, referred to as paste-extrusion, produces a flat white finished product. Typically, fibers produced using paste-extrusion have higher tenacity.

FIBER-LINE® Enhancing Processes
 for PTFE:



Gore, Lenzing, Toray, Other various suppliers


Common Deniers

Various sizes available

PTFE Bare Fiber Performance

Abrasion Resistance
Yarn on Yarn Abrasion
Ultraviolet (UV) Resistance
Flame Resistance
Chemical Resistance (Acid)
Chemical Resistance (Alkali)
Chemical Resistance (Organic Solvent)

Chemical Resistance to Acid:
Chemical Resistance to Alkali: Excellent
Chemical Resistance to Organic Solvent: Excellent


Typical Properties

Property UOM Value
Breaking Tenacity g/d 1.5 - 2.0
Specific Gravity Ratio 2.10
Elongation @ Break % 30.0
Tensile Modules g/d 5.0 - 15.0
Moisture Regain* % 0
Creep** % N/A
Shrinkage*** % <11.0
Melt Point 327
Decomposition Temp. 508

* Equilibrium moisture regain @ 55% RH    ** Creep @ 40%-58% ultimate tensile strength    *** Shrinkage in dry air @ 177 C for 30 minutes

This data is provided for informational purposes only, and does not constitute a specification. FIBER-LINE makes no warranty, express or implied, that the product conforms to these values. Contact your FIBER-LINE representative for exact product details which conform to your specific requirements.