Overview of materials for Polyester Film

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Overview of materials for Polyester Film
Categories:	Polymer; Film; Thermoplastic; Polyester, TP; Polyester Film
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Polyester Film". 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.
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Physical Properties	Original Value	Comments

Density	1.00 - 1.51 g/cc	Average value: 1.37 g/cc Grade Count:390
Water Absorption	0.150 - 0.800 %	Average value: 0.384 % Grade Count:9
Moisture Vapor Transmission	0.0120 - 1.20 cc-mm/m²-24hr-atm	Average value: 0.583 cc-mm/m²-24hr-atm Grade Count:126
Water Vapor Transmission	4.00 - 104 g/m²/day	Average value: 29.1 g/m²/day Grade Count:31
	0.776 - 43.456 g/m²/day @Temperature 38.0 - 38.0 °C	Average value: 23.9 g/m²/day Grade Count:33
Oxygen Transmission	0.0200 - 44.0 cc-mm/m²-24hr-atm	Average value: 2.87 cc-mm/m²-24hr-atm Grade Count:130
Carbon Dioxide Transmission	149 - 211 cc-mm/m²-24hr-atm	Average value: 170 cc-mm/m²-24hr-atm Grade Count:3
Viscosity	800000 - 800000 cP @Temperature 270 - 270 °C	Average value: 800000 cP Grade Count:1
	800000 - 800000 cP @Shear Rate 100 - 100 1/s	Average value: 800000 cP Grade Count:1
Thickness	2.54 - 478 microns	Average value: 73.3 microns Grade Count:493
Surface Tension	8.00 - 47.0 dynes/cm	Average value: 33.1 dynes/cm Grade Count:3

Mechanical Properties	Original Value	Comments
Hardness, Shore A	81.0 - 95.0	Average value: 86.3 Grade Count:9
Tensile Strength, Ultimate	23.0 - 200 MPa	Average value: 53.1 MPa Grade Count:8
Film Tensile Strength at Yield, MD	35.2 - 228 MPa	Average value: 92.8 MPa Grade Count:139
Film Tensile Strength at Yield, TD	27.6 - 228 MPa	Average value: 92.8 MPa Grade Count:135
Film Elongation at Break, MD	74.0 - 440 %	Average value: 135 % Grade Count:472
Film Elongation at Break, TD	55.0 - 445 %	Average value: 101 % Grade Count:454
Film Elongation at Yield, MD	5.00 - 12.0 %	Average value: 7.80 % Grade Count:5
Film Elongation at Yield, TD	5.00 - 20.0 %	Average value: 9.40 % Grade Count:5
Elongation at Break	130 - 830 %	Average value: 678 % Grade Count:8
Modulus of Elasticity	3.10 - 4.36 GPa	Average value: 3.65 GPa Grade Count:72
Flexural Yield Strength	138 MPa	Average value: 138 MPa Grade Count:3
Flex Crack Resistance	15000 - 20000	Average value: 18100 Grade Count:8
Poissons Ratio	0.380 - 0.580	Average value: 0.480 Grade Count:13
Secant Modulus	3.79 GPa	Average value: 3.79 GPa Grade Count:91
Secant Modulus, MD	1.46 - 6.35 GPa	Average value: 2.60 GPa Grade Count:16
Secant Modulus, TD	1.38 - 7.02 GPa	Average value: 2.69 GPa Grade Count:15
Puncture Energy	1.60 - 4.60 J	Average value: 3.83 J Grade Count:4
	0.700 - 1.20 J @Temperature -20.0 - 0.000 °C	Average value: 0.950 J Grade Count:1
Coefficient of Friction	0.200 - 1.48	Average value: 0.401 Grade Count:164
Coefficient of Friction, Static	0.280 - 0.600	Average value: 0.411 Grade Count:78
Tear Strength Test	0.700 - 600	Average value: 73.2 Grade Count:112
Tear Strength	9.00 - 140 kN/m	Average value: 47.7 kN/m Grade Count:10
Graves Tear Strength	0.123 - 233 kN/m	Average value: 20.7 kN/m Grade Count:21
Elmendorf Tear Strength MD	377 - 724 g	Average value: 533 g Grade Count:4
Elmendorf Tear Strength TD	428 - 897 g	Average value: 627 g Grade Count:4
Elmendorf Tear Strength, MD	0.827 - 7.09 g/micron	Average value: 2.95 g/micron Grade Count:6
Elmendorf Tear Strength, TD	0.866 - 5.30 g/micron	Average value: 2.49 g/micron Grade Count:5
Dart Drop	3.20 - 3.53 g/micron	Average value: 3.41 g/micron Grade Count:3
	3.20 - 3.65 g/micron @Temperature -30.0 - -18.0 °C	Average value: 3.42 g/micron Grade Count:3
Dart Drop Test	825 - 882 g	Average value: 863 g Grade Count:3
	825 - 913 g @Temperature -30.0 - -18.0 °C	Average value: 874 g Grade Count:3
Seal Strength	102 - 3000 g/25 mm	Average value: 583 g/25 mm Grade Count:10
Film Tensile Strength at Break, MD	41.0 - 284 MPa	Average value: 177 MPa Grade Count:516
Film Tensile Strength at Break, TD	35.0 - 314 MPa	Average value: 216 MPa Grade Count:495
Heat Seal Strength	22.0 - 1800 g/25 mm	Average value: 441 g/25 mm Grade Count:14
Heat Seal Strength Initiation Temperature	104 - 204 °C	Average value: 159 °C Grade Count:7

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+8 - 1.00e+18 ohm-cm	Average value: 1.03e+17 ohm-cm Grade Count:32
Surface Resistance	10.0 - 2.00e+17 ohm	Average value: 6.74e+15 ohm Grade Count:41
Dielectric Constant	2.43 - 3.20	Average value: 2.87 Grade Count:18
Dielectric Strength	14.6 - 410 kV/mm	Average value: 157 kV/mm Grade Count:81
	200 - 200 kV/mm @Temperature 150 - 150 °C	Average value: 200 kV/mm Grade Count:1
	200 - 200 kV/mm @Frequency 50.0 - 50.0 Hz	Average value: 200 kV/mm Grade Count:1
Dielectric Breakdown	490 - 26000 V	Average value: 10800 V Grade Count:74
Dissipation Factor	0.00300 - 0.0550	Average value: 0.0121 Grade Count:11
Arc Resistance	131 - 135 sec	Average value: 133 sec Grade Count:4
Comparative Tracking Index	400 - 600 V	Average value: 500 V Grade Count:28
Hot Wire Ignition, HWI	7.00 - 15.0 sec	Average value: 8.71 sec Grade Count:28
High Amp Arc Ignition, HAI	15.0 - 120 arcs	Average value: 60.0 arcs Grade Count:28

Thermal Properties	Original Value	Comments
CTE, linear	16.0 - 90.0 µm/m-°C	Average value: 31.5 µm/m-°C Grade Count:26
	17.0 - 17.0 µm/m-°C @Temperature 30.0 - 50.0 °C	Average value: 17.0 µm/m-°C Grade Count:13
Specific Heat Capacity	1.17 J/g-°C	Average value: 1.17 J/g-°C Grade Count:172
	1.29704 - 2.59408 J/g-°C @Temperature 60.0 - 250 °C	Average value: 1.95 J/g-°C Grade Count:7
Thermal Conductivity	0.150 - 0.155 W/m-K	Average value: 0.154 W/m-K Grade Count:14
Melting Point	220 - 269 °C	Average value: 254 °C Grade Count:193
Crystallization Temperature	170 - 175 °C	Average value: 173 °C Grade Count:3
Maximum Service Temperature, Air	65.0 - 232 °C	Average value: 146 °C Grade Count:197
Deflection Temperature at 0.46 MPa (66 psi)	68.0 - 71.0 °C	Average value: 69.5 °C Grade Count:4
Deflection Temperature at 1.8 MPa (264 psi)	62.0 - 64.0 °C	Average value: 62.8 °C Grade Count:4
Vicat Softening Point	79.0 - 81.0 °C	Average value: 80.5 °C Grade Count:4
Minimum Service Temperature, Air	-73.3 - -40.0 °C	Average value: -49.9 °C Grade Count:134
Brittleness Temperature	-60.0 - -40.0 °C	Average value: -48.3 °C Grade Count:3
Glass Transition Temp, Tg	35.0 - 150 °C	Average value: 87.5 °C Grade Count:15
UL RTI, Electrical	160 °C	Average value: 160 °C Grade Count:3
UL RTI, Mechanical without Impact	180 °C	Average value: 180 °C Grade Count:3
Flammability, UL94	HB	Grade Count:3
Oxygen Index	23.5 - 24.7 %	Average value: 24.1 % Grade Count:4

Optical Properties	Original Value	Comments
Refractive Index	1.54 - 1.67	Average value: 1.65 Grade Count:123
Optical Density	0.500 - 46.0	Average value: 15.8 Grade Count:20
Haze	0.180 - 97.0 %	Average value: 12.8 % Grade Count:294
Gloss	1.30 - 200 %	Average value: 78.0 % Grade Count:99
Yellow Index	-1.50 - 0.500 %	Average value: -0.167 % Grade Count:3
Transmission, Visible	1.10 - 96.0 %	Average value: 76.3 % Grade Count:225
UV Transmittance	8.00 - 89.0 %	Average value: 57.2 % Grade Count:5

Processing Properties	Original Value	Comments
Processing Temperature	93.0 - 220 °C	Average value: 185 °C Grade Count:19
Melt Temperature	223 - 282 °C	Average value: 244 °C Grade Count:5
Cure Time	90.0 - 90.0 min @Temperature 177 - 177 °C	Average value: 90.0 min Grade Count:1

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 terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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