Teflon Materials

||Teflon Materials
Teflon Materials2017-01-23T10:03:08+00:00

Teflon is a brand name for polytetrafluoroethylene (PTFE), a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications.

Virgin Teflon 25% Glass-Reinforced Teflon Fluorosint 207 Fluorosint 500 Semitron ESD500
Mechanical ASTM Test Method Polytetra-fluoroethylene 25% GF Polytetra-fluoroethylene FDA Synthetic Mica-Filled PTFE Synthetic Mica-Filled PTFE Electrostatic Dissapative PTFE Units
Strength to Weight Ratio - - - - - - ksi
Specific Gravity @73 F D792 2.13 2.2 2.30 2.32 2.3 -
Tensile Strength @73 F, (ult)/(yld) D638 4.500 (ult) 2,800 (ult) 1,500 1,100 1,500 psi
Tensile Modulus of Elasticity @73 F D638 - - 250,000 300,000 250,000 psi
Tensile Elongation at Break @73 F D638 400 325 50 10 50 %
Flexural Strength @73 F D790 - - 2,000 2,200 2,200 psi
Flexural Modulus of Elasticity @73 F D790 50,000-90,000 - 350,000 500,000 350,000 psi
Shear Strength @73 F D732 - - 1,700 2,100 1,700 psi
Comprehensive Strength, (% Deformation) @73 F D695 600 (1) 1,000 (1) 3,800 (10) 4,000 (10) 3,800 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 - - 225,000 250,000 225,000 psi
Hardness, Rockwell, Scale as noted @73 F D785 - - (R50) (R55) (R50) -
Hardness, Durometer, Shore D @73 F - D55 D54 D65 D70 D65 -
Izod Impact, (Notched) @73 F D256 Type A 3.0 - 1.0 0.9 1.0 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.05 - 0.08 0.10 - 0.13 0.17 0.18 0.17 -
Limiting PV, (with 4 to 1 factor of safety applied) - - - 8,000 8,000 8,000 psi-ft/min
Thermal ASTM Test Method Polytetra-fluoroethylene 25% GF Polytetra-fluoroethylene FDA Synthetic Mica-Filled PTFE Synthetic Mica-Filled PTFE Electrostatic Dissapative PTFE Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 7.0 E-05 3-8 E-05 5.7 E-05 2.4 E-05 5.7 E-05 in/in/F
Heat Deflection Temperature @264 psi D648 115 - 210 270 210 F
Tg-Glass transition termperature, (Amorphous) D3418 - - - - - F
Melting Point, (VS=Vicat Softening Temp.) D3418 621 621 621 621 621 F
Continuous Service Temperature in Air, (Max.) - 500 500 500 500 500 F
Thermal Conductivity - 1.70 2.60 - 5.30 - BTU-in/hr-ft2-F
Electric ASTM Test Method Polytetra-fluoroethylene 25% GF Polytetra-fluoroethylene FDA Synthetic Mica-Filled PTFE Synthetic Mica-Filled PTFE Electrostatic Dissapative PTFE Units
Dielectric Strength, Short Term D149 600 - 200 275 - Volts/mil
Volume Resistivity D257 >10 E+18- - >1E13 >1E14 1E11 - 1E13 ohm-cm
Dielectric Constant @10E6 Hz D150 - - 2.7 2.9 - -
Dissipation Factor @10E6 Hz D150 - - 0.008 0.008 - -
Flammability @3.1 mm unless noted UL94 V-0 - V-0 V-0 V-0 -
H2O ASTM Test Method Polytetra-fluoroethylene 25% GF Polytetra-fluoroethylene FDA Synthetic Mica-Filled PTFE Synthetic Mica-Filled PTFE Electrostatic Dissapative PTFE Units
Water Absorption, Immersion, 24 hours D570(7) 0.00 - 0.03 0.10 0.03 % by weight
Water Absorption, Saturation D570(7) - - 2.00 3.00 2.00 % by weight