Overview of materials for Polyethylene Terephthalate (PET), Unreinforced

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Overview of materials for Polyethylene Terephthalate (PET), Unreinforced
Categories:	Polymer; Thermoplastic; Polyester, TP; Polyethylene Terephthalate (PET); Polyethylene Terephthalate (PET), Unreinforced
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Polyethylene Terephthalate (PET), Unreinforced". 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	0.0700 - 2.50 g/cc	Average value: 1.36 g/cc Grade Count:136
	1.10 - 1.20 g/cc @Temperature 285 - 285 °C	Average value: 1.19 g/cc Grade Count:27
Water Absorption	0.0200 - 0.800 %	Average value: 0.220 % Grade Count:37
Moisture Absorption at Equilibrium	0.0400 - 0.600 %	Average value: 0.292 % Grade Count:25
Water Absorption at Saturation	0.400 - 0.900 %	Average value: 0.546 % Grade Count:17
Particle Size	2500 - 3500 µm	Average value: 2800 µm Grade Count:47
Water Vapor Transmission	0.490 - 6.00 g/m²/day	Average value: 3.08 g/m²/day Grade Count:6
Oxygen Transmission	5.10 - 23.0 cc-mm/m²-24hr-atm	Average value: 11.1 cc-mm/m²-24hr-atm Grade Count:3
Oxygen Transmission Rate	2.00 - 20.0 cc/m²/day	Average value: 14.0 cc/m²/day Grade Count:3
Viscosity Test	62.0 - 86.0 cm³/g	Average value: 79.6 cm³/g Grade Count:51
Viscosity Number	0.800 - 85.0 cm³/g	Average value: 54.4 cm³/g Grade Count:3
Maximum Moisture Content	0.0100 - 0.400	Average value: 0.302 Grade Count:6
Thickness	100 - 1200 microns	Average value: 367 microns Grade Count:12
Linear Mold Shrinkage	0.00100 - 0.0200 cm/cm	Average value: 0.00667 cm/cm Grade Count:40
Linear Mold Shrinkage, Transverse	0.00100 - 0.0110 cm/cm	Average value: 0.00508 cm/cm Grade Count:18
Melt Flow	3.50 - 70.0 g/10 min	Average value: 43.0 g/10 min Grade Count:13

Chemical Properties	Original Value	Comments
Acetaldehyde	0.100 - 3.00 ppm	Average value: 1.12 ppm Grade Count:26

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	80.0 - 96.0	Average value: 92.8 Grade Count:16
Hardness, Rockwell R	105 - 125	Average value: 114 Grade Count:24
Hardness, Shore D	71.4 - 87.0	Average value: 80.8 Grade Count:13
Ball Indentation Hardness	117 - 194 MPa	Average value: 160 MPa Grade Count:11
Tensile Strength, Ultimate	22.0 - 830 MPa	Average value: 63.1 MPa Grade Count:42
Film Tensile Strength at Yield, MD	55.0 - 260 MPa	Average value: 176 MPa Grade Count:17
Film Tensile Strength at Yield, TD	53.0 - 265 MPa	Average value: 204 MPa Grade Count:17
Tensile Strength, Yield	5.52 - 147 MPa	Average value: 73.6 MPa Grade Count:49
Film Elongation at Break, MD	40.0 - 600 %	Average value: 175 % Grade Count:22
Film Elongation at Break, TD	30.0 - 600 %	Average value: 137 % Grade Count:21
Film Elongation at Yield, MD	4.00 - 6.00 %	Average value: 4.67 % Grade Count:3
Film Elongation at Yield, TD	4.00 - 6.00 %	Average value: 4.67 % Grade Count:3
Elongation at Break	1.10 - 600 %	Average value: 67.3 % Grade Count:65
Elongation at Yield	3.50 - 5.83 %	Average value: 4.13 % Grade Count:25
Modulus of Elasticity	1.57 - 5.20 GPa	Average value: 3.25 GPa Grade Count:57
Flexural Yield Strength	55.3 - 210 MPa	Average value: 104 MPa Grade Count:47
Flexural Modulus	0.138 - 12.8 GPa	Average value: 3.66 GPa Grade Count:41
Compressive Yield Strength	20.0 - 107 MPa	Average value: 60.7 MPa Grade Count:14
Compressive Modulus	2.38 - 2.80 GPa	Average value: 2.68 GPa Grade Count:5
Shear Strength	55.0 - 59.0 MPa	Average value: 56.6 MPa Grade Count:5
Secant Modulus	0.00100 - 2.10 GPa	Average value: 0.361 GPa Grade Count:3
Izod Impact, Notched	0.139 - 100 J/cm	Average value: 1.03 J/cm Grade Count:33
	0.270 - 1.28 J/cm @Temperature -40.0 - -40.0 °C	Average value: 0.468 J/cm Grade Count:12
Izod Impact, Unnotched	2.67 J/cm - NB	Average value: 3.83 J/cm Grade Count:15
	NB - NB @Temperature -40.0 - -30.0 °C	Grade Count:11
Izod Impact, Notched (ISO)	2.00 - 8.10 kJ/m²	Average value: 4.36 kJ/m² Grade Count:14
	3.10 - 4.20 kJ/m² @Temperature -40.0 - -40.0 °C	Average value: 3.73 kJ/m² Grade Count:6
Izod Impact, Unnotched (ISO)	NB	Grade Count:3
	160 - 181 kJ/m² @Temperature -40.0 - -40.0 °C	Average value: 170 kJ/m² Grade Count:3
Charpy Impact Unnotched	3.00 J/cm² - NB	Average value: 5.80 J/cm² Grade Count:20
	NB - NB @Temperature -30.0 - -30.0 °C	Grade Count:4
Charpy Impact, Notched	0.200 - 1.40 J/cm²	Average value: 0.458 J/cm² Grade Count:28
	0.270 - 0.500 J/cm² @Temperature -30.0 - -30.0 °C	Average value: 0.347 J/cm² Grade Count:5
Puncture Energy	12.0 - 41.0 J	Average value: 25.7 J Grade Count:8
	13.0 - 39.0 J @Temperature -40.0 - -40.0 °C	Average value: 7.77 J Grade Count:4
	0.800 - 24.0 J @Temperature -40.0 - -40.0 °C	Average value: 7.77 J Grade Count:4
	0.800 - 24.0 J @Thickness 2.50 - 3.20 mm	Average value: 7.77 J Grade Count:4
Coefficient of Friction	0.180 - 0.300	Average value: 0.230 Grade Count:12
Coefficient of Friction, Static	0.190 - 0.400	Average value: 0.355 Grade Count:14
Tear Strength, Total	15.0 - 120 N	Average value: 70.4 N Grade Count:3
Tear Strength	0.265 - 59.0 kN/m	Average value: 32.4 kN/m Grade Count:5
Elmendorf Tear Strength, MD	3.14 - 4.00 g/micron	Average value: 3.71 g/micron Grade Count:3
Elmendorf Tear Strength, TD	3.24 - 5.20 g/micron	Average value: 4.55 g/micron Grade Count:3
Dart Drop	1.08 - 2.00 g/micron	Average value: 1.69 g/micron Grade Count:3
Film Tensile Strength at Break, MD	1.70 - 60.0 MPa	Average value: 27.3 MPa Grade Count:8
Film Tensile Strength at Break, TD	1.60 - 48.0 MPa	Average value: 19.6 MPa Grade Count:7

Electrical Properties	Original Value	Comments
Electrical Resistivity	5.00e+6 - 1.00e+18 ohm-cm	Average value: 5.13e+16 ohm-cm Grade Count:43
Surface Resistance	300 - 1.00e+16 ohm	Average value: 1.89e+15 ohm Grade Count:33
Dielectric Constant	2.40 - 3.80	Average value: 3.26 Grade Count:45
	3.60 - 3.60 @Temperature 150 - 150 °C	Average value: 3.60 Grade Count:9
	3.60 - 3.60 @Frequency 50.0 - 50.0 Hz	Average value: 3.60 Grade Count:9
Dielectric Strength	15.2 - 60.0 kV/mm	Average value: 23.6 kV/mm Grade Count:38
Dissipation Factor	0.00100 - 0.0250	Average value: 0.0108 Grade Count:34
	0.00480 - 0.00480 @Temperature 150 - 150 °C	Average value: 0.00480 Grade Count:3
	0.00480 - 0.00480 @Frequency 50.0 - 50.0 Hz	Average value: 0.00480 Grade Count:3
Dielectric Loss Index	0.00100 - 0.0150	Average value: 0.00855 Grade Count:5
Arc Resistance	80.0 - 158 sec	Average value: 107 sec Grade Count:14
Comparative Tracking Index	35.0 - 600 V	Average value: 472 V Grade Count:18

Thermal Properties	Original Value	Comments
CTE, linear	30.6 - 100 µm/m-°C	Average value: 65.3 µm/m-°C Grade Count:45
CTE, linear, Transverse to Flow	48.0 - 80.0 µm/m-°C	Average value: 71.1 µm/m-°C Grade Count:9
Specific Heat Capacity	1.00 - 1.50 J/g-°C	Average value: 1.16 J/g-°C Grade Count:27
	1.21336 - 2.30 J/g-°C @Temperature 60.0 - 280 °C	Average value: 1.69 J/g-°C Grade Count:24
Thermal Conductivity	0.190 - 0.290 W/m-K	Average value: 0.266 W/m-K Grade Count:23
Melting Point	200 - 260 °C	Average value: 246 °C Grade Count:127
Maximum Service Temperature, Air	60.0 - 225 °C	Average value: 130 °C Grade Count:34
Deflection Temperature at 0.46 MPa (66 psi)	66.0 - 250 °C	Average value: 114 °C Grade Count:34
Deflection Temperature at 1.8 MPa (264 psi)	60.0 - 230 °C	Average value: 103 °C Grade Count:55
Vicat Softening Point	74.0 - 85.0 °C	Average value: 79.5 °C Grade Count:10
Minimum Service Temperature, Air	-50.0 - -20.0 °C	Average value: -25.5 °C Grade Count:20
Glass Transition Temp, Tg	70.0 - 82.0 °C	Average value: 75.4 °C Grade Count:12
UL RTI, Electrical	75.0 - 150 °C	Average value: 113 °C Grade Count:7
UL RTI, Mechanical with Impact	75.0 - 150 °C	Average value: 113 °C Grade Count:7
UL RTI, Mechanical without Impact	75.0 - 150 °C	Average value: 113 °C Grade Count:7
Flammability, UL94	HB - 5VB	Grade Count:41
Oxygen Index	22.0 - 25.0 %	Average value: 24.0 % Grade Count:3

Optical Properties	Original Value	Comments
Refractive Index	1.57 - 1.59	Average value: 1.58 Grade Count:3
Haze	0.300 - 40.0 %	Average value: 10.0 % Grade Count:22
Gloss	108 - 166 %	Average value: 131 % Grade Count:6
Transmission, Visible	67.0 - 99.0 %	Average value: 89.3 % Grade Count:44

Processing Properties	Original Value	Comments
Processing Temperature	90.0 - 300 °C	Average value: 219 °C Grade Count:10
Melt Temperature	120 - 295 °C	Average value: 254 °C Grade Count:36
Mold Temperature	10.0 - 163 °C	Average value: 57.5 °C Grade Count:16
Drying Temperature	65.0 - 160 °C	Average value: 98.9 °C Grade Count:14
Moisture Content	0.100 - 0.400 %	Average value: 0.239 % Grade Count:78

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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