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.

MechanicalASTM Test MethodValueUnits
Strength to Weight Ratio--ksi
Specific Gravity @73 FD7922.16-
Tensile Strength @73 F, (ult)/(yld)D6384,500 (ult)psi
Tensile Modulus of Elasticity @73 FD638-psi
Tensile Elongation at Break @73 FD638400%
Flexural Strength @73 FD790-psi
Flexural Modulus of Elasticity @73 FD79050,000 - 90,000psi
Shear Strength @73 FD732-psi
Comprehensive Strength, (% Deformation) @73 FD695600 (1)psi
Comprehensive Modulus of Elasticity @73 FD695-psi
Hardness, Rockwell, Scale as noted @73 FD785--
Hardness, Durometer, Shore D @73 FD2240D55-
Izod Impact, (Notched) @73 FD256 Type A3.0ft-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
ThermalASTM Test MethodValueUnits
Coefficient of Linear Thermal Expansion @73 FE-831 (TMA)7.0 E-05in/in/F
Heat Deflection Temperature @264 psiD648115F
Tg-Glass transition termperature, (Amorphous)D3418-F
Melting Point, (VS=Vicat Softening Temp.)D3418621F
Continuous Service Temperature in Air, (Max.)-500F
Thermal Conductivity-1.7BTU-in/hr-ft2-F
ElectricASTM Test MethodValueUnits
Dielectric Strength, Short TermD149600Volts/mil
Volume ResistivityD257>10 E+18ohm-cm
Dielectric Constant @10E6 HzD150--
Dissipation Factor @10E6 HzD150--
Flammability @3.1 mm unless notedUL94V-0-
H2OASTM Test MethodValueUnits
Water Absorption, Immersion, 24 hoursD570(7)0.00% by weight
Water Absorption, SaturationD570(7)-% by weight