Overview of materials for Polytetrafluoroethylene (PTFE), Molded
Categories: Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Molded

Material Notes: This property data is a summary of similar materials in the MatWeb database for the category "Polytetrafluoroethylene (PTFE), Molded". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.

Vendors: Click here to view all available suppliers for this material.

Please click here if you are a supplier and would like information on how to add your listing to this material.

 
Physical PropertiesMetricEnglishComments
Particle Size 0.55 - 4450 µm0.55 - 4450 µmAverage value: 443 µm Grade Count:33
Density 0.700 - 3.35 g/cc0.0253 - 0.121 lb/in³Average value: 2.07 g/cc Grade Count:114
Viscosity 1.00e+13 - 1.00e+15 cP
@Temperature 340 - 380 °C
1.00e+13 - 1.00e+15 cP
@Temperature 644 - 716 °F
Average value: 5.05e+14 cP Grade Count:10
Water Absorption 0.00 - 0.10 %0.00 - 0.10 %Average value: 0.00740 % Grade Count:57
Linear Mold Shrinkage 0.020 - 0.050 cm/cm0.020 - 0.050 in/inAverage value: 0.0317 cm/cm Grade Count:23
 
Mechanical PropertiesMetricEnglishComments
Coefficient of Friction 0.020 - 0.280.020 - 0.28Average value: 0.0646 Grade Count:44
Ball Indentation Hardness 23.0 - 37.0 MPa3340 - 5370 psiAverage value: 32.0 MPa Grade Count:9
Charpy Impact, Notched 1.40 - 1.90 J/cm²6.66 - 9.04 ft-lb/in²Average value: 1.76 J/cm² Grade Count:5
Coefficient of Friction, Static 0.020 - 0.0800.020 - 0.080Average value: 0.0524 Grade Count:25
Compressive Yield Strength 1.50 - 28.6 MPa218 - 4150 psiAverage value: 10.2 MPa Grade Count:27
Elongation at Break 40 - 650 %40 - 650 %Average value: 306 % Grade Count:114
Flexural Modulus 0.490 - 3.34 GPa71.1 - 485 ksiAverage value: 0.672 GPa Grade Count:20
Flexural Yield Strength 14.0 - 27.6 MPa2.03 - 4.00 ksiAverage value: 19.6 MPa Grade Count:3
Hardness, Shore D 11 - 7011 - 70Average value: 57.0 Grade Count:42
Izod Impact, Notched 1.30 - 1.87 J/cm2.44 - 3.50 ft-lb/inAverage value: 1.65 J/cm Grade Count:14
K (wear) Factor 3.00 - 5040 x 10-8 mm³/N-M1.49 - 2500 x 10-10 in³-min/ft-lb-hrAverage value: 1920 x 10-8 mm³/N-M Grade Count:7
Shear Strength 9.30792 - 25.5106 MPa
@Temperature 26.7 - 204 °C
1350.00 - 3700.01 psi
@Temperature 80.0 - 400 °F
Average value: 15.1 MPa Grade Count:2
Tensile Strength, Ultimate 13.0 - 333 MPa1890 - 48300 psiAverage value: 35.0 MPa Grade Count:64
Flex Crack Resistance 1.00e+61.00e+6Average value: 1.00e+6 Grade Count:7
Izod Impact, Unnotched 1.60 J/cm3.00 ft-lb/inAverage value: 1.60 J/cm Grade Count:10
Taber Abrasion, mg/1000 Cycles 5.0 - 41.85.0 - 41.8Average value: 21.5 Grade Count:10
Compression Set 3.0 - 20.1 %3.0 - 20.1 %Average value: 11.7 % Grade Count:6
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 2.0 - 122.0 - 12Average value: 2.39 Grade Count:56
Dielectric Strength 2.50 - 165 kV/mm63.5 - 4200 kV/inAverage value: 58.7 kV/mm Grade Count:74
Comparative Tracking Index 600 V600 VAverage value: 600 V Grade Count:6
Dissipation Factor 0.000010 - 0.0360.000010 - 0.036Average value: 0.00119 Grade Count:53
Electrical Resistivity 1.00e+14 - 1.10e+18 ohm-cm1.00e+14 - 1.10e+18 ohm-cmAverage value: 8.68e+17 ohm-cm Grade Count:49
Surface Resistance 1.00e+6 - 1.00e+18 ohm1.00e+6 - 1.00e+18 ohmAverage value: 4.48e+17 ohm Grade Count:26
Dielectric Loss Index 0.000100.00010Average value: 0.000100 Grade Count:6
Arc Resistance 300 - 420 sec300 - 420 secAverage value: 346 sec Grade Count:13
 
Thermal PropertiesMetricEnglishComments
CTE, linear 14.0 - 250 µm/m-°C7.78 - 139 µin/in-°FAverage value: 108 µm/m-°C Grade Count:44
 57.0 - 170 µm/m-°C
@Temperature 30.0 - 300 °C
31.7 - 94.4 µin/in-°F
@Temperature 86.0 - 572 °F
Average value: 95.7 µm/m-°C Grade Count:9
Melting Point 135 - 344 °C275 - 651 °FAverage value: 325 °C Grade Count:57
Deflection Temperature at 1.8 MPa (264 psi) 50.0 - 93.3 °C122 - 200 °FAverage value: 64.8 °C Grade Count:3
Flammability, UL94 V-0V-0Grade Count:59
Maximum Service Temperature, Air 93.3 - 316 °C200 - 600 °FAverage value: 260 °C Grade Count:74
Minimum Service Temperature, Air -268 - -200 °C-450 - -328 °FAverage value: -212 °C Grade Count:23
Oxygen Index 92 - 95 %92 - 95 %Average value: 94.9 % Grade Count:30
Thermal Conductivity 0.230 - 0.500 W/m-K1.60 - 3.47 BTU-in/hr-ft²-°FAverage value: 0.263 W/m-K Grade Count:34
 0.220 - 0.320 W/m-K
@Temperature 100 - 250 °C
1.53 - 2.22 BTU-in/hr-ft²-°F
@Temperature 212 - 482 °F
Average value: 0.276 W/m-K Grade Count:7
Specific Heat Capacity 1.00 - 1.05 J/g-°C0.239 - 0.251 BTU/lb-°FAverage value: 1.01 J/g-°C Grade Count:6
 0.960 - 1.03 J/g-°C
@Temperature 0.000 - 50.0 °C
0.229 - 0.246 BTU/lb-°F
@Temperature 32.0 - 122 °F
Average value: 0.995 J/g-°C Grade Count:1
 
Processing PropertiesMetricEnglishComments
Processing Temperature 370 °C698 °FAverage value: 370 °C Grade Count:5
Moisture Content 0.040 %0.040 %Average value: 0.0400 % Grade Count:4

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's disclaimer and terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.