Teflon® is a brand name for polytetrafluoroethylene (PTFE), a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications.  Other trade names for PTFE include Fluorosint®, Interplast, Rulon®, and Semitron® ESD.

Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - - ksi
Specific Gravity @73 F D792 2.16 -
Tensile Strength @73 F, (ult)/(yld) D638 4,500 (ult) psi
Tensile Modulus of Elasticity @73 F D638 - psi
Tensile Elongation at Break @73 F D638 400 %
Flexural Strength @73 F D790 - psi
Flexural Modulus of Elasticity @73 F D790 50,000 - 90,000 psi
Shear Strength @73 F D732 - psi
Comprehensive Strength, (% Deformation) @73 F D695 600 (1) psi
Comprehensive Modulus of Elasticity @73 F D695 - psi
Hardness, Rockwell, Scale as noted @73 F D785 - -
Hardness, Durometer, Shore D @73 F D2240 D55 -
Izod Impact, (Notched) @73 F D256 Type A 3.0 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.05 - 0.08 -
Limiting PV, (with 4 to 1 factor of safety applied) - - psi-ft/min
Thermal ASTM Test Method Value Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 7.0 E-05 in/in/F
Heat Deflection Temperature @264 psi D648 115 F
Tg-Glass transition termperature, (Amorphous) D3418 - F
Melting Point, (VS=Vicat Softening Temp.) D3418 621 F
Continuous Service Temperature in Air, (Max.) - 500 F
Thermal Conductivity - 1.7 BTU-in/hr-ft2-F
Electric ASTM Test Method Value Units
Dielectric Strength, Short Term D149 600 Volts/mil
Volume Resistivity D257 >10 E+18 ohm-cm
Dielectric Constant @10E6 Hz D150 - -
Dissipation Factor @10E6 Hz D150 - -
Flammability @3.1 mm unless noted UL94 V-0 -
H2O ASTM Test Method Value Units
Water Absorption, Immersion, 24 hours D570(7) 0.00 % by weight
Water Absorption, Saturation D570(7) - % by weight