Material Information

Fluorosint® is the result of synthetically manufactured mica that has been chemically linked to PTFE. While Fluorosint®’s chemical resistance parallels PTFE, Fluorosint®’s unique chemical composition results in properties not normally attainable in PTFE such as better wear resistance and a lower coefficient of thermal expansion. It has continuous use temperatures up to 500º F. Fluorosint® in general offers low frictional properties and dimensional stability. Fluorosint® 207 PTFE is unique in that it offers the lowest coefficient of friction in the Fluorosint® grades, has unmatched dimensional stability, has excellent creep resistance, and is FDA approved. It is also non-permeable to steam and works well against most mating surfaces. Compared to unfilled PTFE, Fluorosint® 207 PTFE has 1/20th the rate of wear of PTFE below 300º F. This makes it ideal for use as aggressive service bearings and bushings or as a replacement for applications using PTFE that require a longer lasting material. It is available in a white color in the form of rod or plate.


  • Seals
  • Mixers
  • Pumps
  • Appliances
  • Bearings
  • Valve seats


  • Excellent chemical resistance
  • Increased wear resistance
  • Unmatched dimensional stability
  • Excellent creep resistance
  • Non-permeable to steam
  • Extremely low coefficient of friction
  • Lower coefficient of thermal expansion
  • Non abrasive to most mating materials
  • FDA approved


Astm Test Method

Fluorosint® 207 (FDA)

Density (lb/in^3) D792 0.083
Specific Gravity D792 2.3
Water Absorption @ 24 hours (%) D570 0.03
Water Saturation (%) D570 0.2


Tensile Strength (PSI) D638 1,500
Tensile Modulus (PSI) D638 250,000
Tensile Elongation at Break (%) D638 50
Flexural Strength (PSI) D790 2,000
Flexural Modulus (PSI) D790 350,000
Shear Strength (PSI) D732 1,700
Compressive Strength (PSI) D695 3,800
Compressive Modulus (PSI) D695 225,000
Deformation Under Load (% @ 2000 PSI @
122 ºF)
Izod Impact (Notched), ft-lb/in D256 Type “A” 1
Rockwell Hardness D785 R50
Shore D Hardness D2240 D65
Coefficient of Friction (Dry vs Steel)
QTM 55007 0.1
PV (4:1 Safety Factor)
QTM 55007 8,000
Wear Factor “K” x 10^-10 QTM 55007 30


Coefficient of Thermal Expansion,
D696 5.7
Heat Deflection Temperature 264 psi, ºF D648 210
Melting Point, °F D3418 621
Continous Service Temp (Operating), °F 500
Thermal Conductivity, BTU-in/hr-ft² °F F433
Flammability Rating UL94 VO


Dielectric Strength, Short Term,
(Volts/Mil) @ .125″ Thick
D149 200
Surface Resistivity (ohms per square) EOS/ESD S 11.11 >10^12
Dielectric Constant at 1 MHZ D150 2.65
Dissipation Factor at 1 MHZ D150 0.008


The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.