PTFE Unfilled

PTFE Unfilled


What is the Material: PTFE (Teflon) Unfilled is a semi-crystalline material.

Key Material Features: This material is beneficial in applications requiring diverse chemical resistance, low friction, a wide operational temperature range, low moisture absorption, and electrical properties.

Other Considerations: Often adding fillers to PTFE increases wear and hardness.


Property Value Typical ASTM Test
Chemical Designation (PTFE) Polytetrafluoroethylene
Trade Names (®, ™) Teflon
Color White
Density (g/cm^3) 2.16 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 80000 D 638
Tensile Strength at Yield (psi) 3190 D 638
Elongation at Break (%) 220 D 638
Modulus of Elasticity (Flexural Test) (psi) 72000 D 790
Compression Strength: 10% Strain (psi) 3500 D 695
Compression Modulus (psi) 70000 D 695
Impact Strength (Izod) (ft-lbs/in) 3.5 D 256
Hardness (D) 50 D 785
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) 0.05 D 3702
Coefficient of Friction (Static) 0.07 D 3702


Property Value Typical ASTM Test
Melting Point (°F) 635 D 3418
Deflection Temperature (°F) (264 psi) 135 D 648
Service Temperature Continuous (°F) 500
Service Temperature Minimal (°F) -328
Thermal Expansion (CLTE) (in/in/°F) 7.50E-5 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 1.39


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E18 D 257
Volume Resistivity (Ω*cm) 1.00E17 D 257
Dielectric Strength (V/mil) 285 D 149
Dissipation Factor (1MHz) 0.0002 D 150
Dielectric Constant (1MHz) 2.1 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.01 D 570
Flammability V-0
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.