Overview of materials for Polytetrafluoroethylene (PTFE), Molded

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Categories:

Polymer; Thermoplastic; Fluoropolymer; 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:

Applied Plastics Technology, Inc. (APT) is specialized in Teflon® PTFE Compression Molding and precision CNC Machining of PTFE component parts. In addition to PTFE, Modified PTFE and filled PTFE Compounds, APT machines advanced engineering plastics including PCTFE, Torlon®, PEEK, UHMW-PE, Acetal, Nylon and others. Call (800) 752-7082, or email info@ptfeparts.com. Visit www.ptfeparts.com.

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Physical Properties	Metric	English	Comments

Bulk Density	0.300 - 0.930 g/cc	0.0108 - 0.0336 lb/in³	Average value: 0.559 g/cc Grade Count:31
Density	0.700 - 2.30 g/cc	0.0253 - 0.0831 lb/in³	Average value: 2.02 g/cc Grade Count:107
Apparent Bulk Density	0.360 - 0.950 g/cc	0.0130 - 0.0343 lb/in³	Average value: 0.667 g/cc Grade Count:26
Water Absorption	0.000 - 0.100 %	0.000 - 0.100 %	Average value: 0.00704 % Grade Count:54
Particle Size	0.250 - 800 µm	0.250 - 800 µm	Average value: 314 µm Grade Count:38
pH	9.50	9.50	Average value: 9.50 Grade Count:6
Viscosity	19.0 - 25.0 cP	19.0 - 25.0 cP	Average value: 22.7 cP Grade Count:6
	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:12
Thickness	12.0 - 25.0 microns	0.472 - 0.984 mil	Average value: 18.0 microns Grade Count:6
Linear Mold Shrinkage	0.0200 - 0.0580 cm/cm	0.0200 - 0.0580 in/in	Average value: 0.0339 cm/cm Grade Count:41
Deformation	0.200 - 14.0 %	0.200 - 14.0 %	Average value: 6.47 % Grade Count:18
Surface Tension	32.0 - 35.0 dynes/cm	32.0 - 35.0 dynes/cm	Average value: 33.5 dynes/cm Grade Count:6

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	50.0 - 65.0	50.0 - 65.0	Average value: 57.2 Grade Count:31
Ball Indentation Hardness	27.0 - 37.0 MPa	3920 - 5370 psi	Average value: 32.8 MPa Grade Count:8
Tensile Strength, Ultimate	10.0 - 45.0 MPa	1450 - 6530 psi	Average value: 32.9 MPa Grade Count:58
Tensile Strength, Yield	0.862 - 41.4 MPa	125 - 6000 psi	Average value: 20.5 MPa Grade Count:49
Elongation at Break	40.0 - 650 %	40.0 - 650 %	Average value: 310 % Grade Count:108
Modulus of Elasticity	0.392 - 2.25 GPa	56.9 - 326 ksi	Average value: 0.583 GPa Grade Count:42
Flexural Modulus	0.490 - 3.36 GPa	71.1 - 488 ksi	Average value: 0.744 GPa Grade Count:14
Flexural Yield Strength	14.0 - 27.6 MPa	2030 - 4000 psi	Average value: 19.6 MPa Grade Count:3
Compressive Yield Strength	1.50 - 23.4 MPa	218 - 3400 psi	Average value: 7.73 MPa Grade Count:16
Shear Strength	9.31 - 25.5 MPa	1350 - 3700 psi	Average value: 15.3 MPa Grade Count:3
Izod Impact, Unnotched	1.60 J/cm	3.00 ft-lb/in	Average value: 1.60 J/cm Grade Count:12
Charpy Impact, Notched	0.500 - 1.90 J/cm²	2.38 - 9.04 ft-lb/in²	Average value: 1.55 J/cm² Grade Count:6
Coefficient of Friction	0.00800 - 0.280	0.00800 - 0.280	Average value: 0.0563 Grade Count:33
Coefficient of Friction, Static	0.0200 - 0.0800	0.0200 - 0.0800	Average value: 0.0530 Grade Count:30
K (wear) Factor	403 - 5040 x 10^-8 mm³/N-M	200 - 2500 x 10^-10 in³-min/ft-lb-hr	Average value: 3490 x 10^-8 mm³/N-M Grade Count:3
Taber Abrasion, mg/1000 Cycles	0.000 - 41.8	0.000 - 41.8	Average value: 13.1 Grade Count:12
Izod Impact, Notched	1.30 - 1.57 J/cm	2.44 - 2.94 ft-lb/in	Average value: 1.42 J/cm Grade Count:7

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+10 - 1.10e+18 ohm-cm	1.00e+10 - 1.10e+18 ohm-cm	Average value: 6.98e+17 ohm-cm Grade Count:48
Surface Resistance	1.00e+10 - 1.00e+18 ohm	1.00e+10 - 1.00e+18 ohm	Average value: 2.68e+17 ohm Grade Count:20
Dielectric Constant	2.00 - 12.0	2.00 - 12.0	Average value: 2.42 Grade Count:47
Dielectric Strength	10.0 - 165 kV/mm	254 - 4200 kV/in	Average value: 68.7 kV/mm Grade Count:60
Dissipation Factor	0.0000100 - 0.0360	0.0000100 - 0.0360	Average value: 0.00120 Grade Count:51
Arc Resistance	300 - 420 sec	300 - 420 sec	Average value: 400 sec Grade Count:6
Comparative Tracking Index	600 V	600 V	Average value: 600 V Grade Count:6

Thermal Properties	Metric	English	Comments
CTE, linear	14.0 - 250 µm/m-°C	7.78 - 139 µin/in-°F	Average value: 106 µm/m-°C Grade Count:42
	120 - 170 µm/m-°C @Temperature 30.0 - 300 °C	66.7 - 94.4 µin/in-°F @Temperature 86.0 - 572 °F	Average value: 143 µm/m-°C Grade Count:9
Specific Heat Capacity	1.00 - 1.05 J/g-°C	0.239 - 0.251 BTU/lb-°F	Average 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
Thermal Conductivity	0.240 - 4.07 W/m-K	1.67 - 28.2 BTU-in/hr-ft²-°F	Average value: 0.357 W/m-K Grade Count:45
Melting Point	135 - 340 °C	275 - 644 °F	Average value: 323 °C Grade Count:46
Maximum Service Temperature, Air	93.3 - 316 °C	200 - 600 °F	Average value: 260 °C Grade Count:68
Deflection Temperature at 1.8 MPa (264 psi)	50.0 - 100 °C	122 - 212 °F	Average value: 73.6 °C Grade Count:4
Minimum Service Temperature, Air	-268 - -200 °C	-450 - -328 °F	Average value: -216 °C Grade Count:17
Flammability, UL94	V-0	V-0	Grade Count:57
Oxygen Index	92.0 - 95.0 %	92.0 - 95.0 %	Average value: 94.9 % Grade Count:28

Processing Properties	Metric	English	Comments
Processing Temperature	370 °C	698 °F	Average value: 370 °C Grade Count:5
Injection Pressure	16.0 - 30.0 MPa	2320 - 4350 psi	Average value: 23.0 MPa Grade Count:6
Back Pressure	15.0 - 40.0 MPa	2180 - 5800 psi	Average value: 27.5 MPa Grade Count:5

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.

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O1900 / 77905

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