Fluorosint® 207

Fluorosint® 207 is a member of the filled PTFE (polytetrafluoroethylene) family of polymers and has unmatched dimensional stability in the family of filled fluoropolymers. It has excellent creep resistance and is off-white in color.  These qualities combined with the fact that it is FDA compliant, uniquely positions this material to serve in FDA regulated applications.  Fluorosint® 500 has a higher level of synthetic filler and has a coefficient of thermal expansion that closely matches aluminum.  Both are non-permeable in steam and comply with the FDA’s regulation 21 CFR 175.300.  Their relative wear rate is 1/20 the rate of unfilled PTFE below 300°F (150°C) making Fluorosint® 207 or Fluorosint 500 excellent choices for aggressive service bearings and bushings.

Specification Test Value Units
Specific Gravity, 73°F D792  2.3
Tensile Strength @ Yield, 73°F D638  1,500 psi
Tensile Modulus of Elasticity, 73°F D638  250,000 psi
Tensile Elongation (at break), 73°F D638  50 %
Flexural Strength, 73°F D790  2,000 psi
Flexural Modulus of Elasticity D790  350,000 psi
Shear Strength, 73°F D732  1,700 psi
Compressive Strength – Ultimate  1,000 psi
Compressive Strength at 2% Deformation D695  1,000 psi
Compressive Strength at 10% Deformation D695  3,800 psi
Deformation Under Load %
Compressive Modulus of Elasticity, 73°F D695  225,000
Compressive Strength ⊥ to Laminate (Modulus) psi
Compressive Strength ⊥ to Laminate (Yield) psi
Compressive Strength ⊥ to Laminate (Ultimate) psi
Hardness, Durometer (Shore “D” scale) D2240  D65
Hardness, Rockwell (Scale as noted) D785  R50 Rockwell M
Izod Impact, Notched @ 73°F D256 Type A  1.0 ft.lbs/in. of notch
Coefficient of Friction (Dry vs Steel) Static PTM55007
Coefficient of Friction (Dry vs Steel) Dynamic PTM55007  0.10
Maximum Static Bearing Load (P) PTM55007  1,000 psi
Maximum Unlubricated No Load Bearing Velocity (V) PTM55007  200 ft/minute
Maximum Limiting PV (Unlubricated) PTM55007  8,000 psi x ft/min.
Wear Factor “K” x 10-10 PTM55010  85 Cubic in.-min/ft.lbs.hr
Sand Wheel Wear/Abrasion Test UHMW=100
Minimum Mating Surface Hardness Rockwell (Brinnell)
Coefficient of Linear Thermal Expansion E-831(TMA)  5.7 in/in/°F x 10-5
Coefficient of Thermal Expansion // to Laminates E-831(TMA) in/in/°F x 10-5
Coefficient of Thermal Expansion I to Laminates E-831(TMA) in/in/°F x 10-5
Softening Point °F
Heat Deflection Temperature 264 psi D648  210 °F
Embrittlement Temperature °F Min.
Continuous Service Temperature in Air  500 °F Max.
Short Term Service Temperature  500 °F Max.
Tg-Glass Transition (Amorphous) D3418  N/A °F
Melting Point (Crystalline) Peak D3418  621 °F
Thermal Conductivity F433  3.05 BTU-in/(hr/ftF)
Dielectric Strength Short Term D149  200 Volts/mil
Surface Resistivity D257 >1013 ohm/cm
Volume Resistivity D257 ohm/cm
Dielectric Constant, 106 Hz D150  2.65
Dissipation Factor, 106 Hz D150  0.008
Flammability @ 3.1mm(1/8 in.) UL94 UL94  V-O
Arc Resistance seconds
Water Absorption, Immersion 24 Hours D570 (2)  0.03 %
Water Absorption, Immersion Saturation D570 (2)  .2 %
Machinability Rating  3 1=easy, 10=difficult
Rod Diameter Availability (Off the Shelf)  .312-8.5 inches
Sheet Thickness Availability (Off the Shelf)  .250-3.0 inches
Characteristics / Attributes Low CoTe / FDA Compliant / Excellent Chemical resistance / Excellent Bearing and Wear Properties