Overview of materials for Low Density Polyethylene (LDPE), Film Grade

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Overview of materials for Low Density Polyethylene (LDPE), Film Grade
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Film Grade
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Low Density Polyethylene (LDPE), Film Grade". 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	Metric	English	Comments

Density	0.902 - 1.00 g/cc	0.0326 - 0.0361 lb/in³	Average value: 0.923 g/cc Grade Count:536
Water Absorption	0.0100 %	0.0100 %	Average value: 0.0100 % Grade Count:17
Moisture Absorption at Equilibrium	0.0100 %	0.0100 %	Average value: 0.0100 % Grade Count:17
Water Vapor Transmission	0.990 - 16.0 g/m²/day	0.0638 - 1.03 g/100 in²/day	Average value: 12.8 g/m²/day Grade Count:21
Oxygen Transmission Rate	2000 - 6820 cc/m²/day	129 - 439 cc/100 in²/day	Average value: 4670 cc/m²/day Grade Count:21
Nitrogen Transmission	3500 - 7500 cc-mm/m²-24hr-atm	8890 - 19100 cc-mil/100 in²-24hr-atm	Average value: 4500 cc-mm/m²-24hr-atm Grade Count:4
Environmental Stress Crack Resistance	2.00 - 500 hour	2.00 - 500 hour	Average value: 169 hour Grade Count:11
Vinyl Acetate Content	2.50 - 6.60 %	2.50 - 6.60 %	Average value: 4.67 % Grade Count:26
Thickness	12.7 - 300 microns	0.500 - 11.8 mil	Average value: 52.4 microns Grade Count:261
Melt Flow	0.120 - 65.0 g/10 min	0.120 - 65.0 g/10 min	Average value: 2.38 g/10 min Grade Count:518

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	80.0 - 99.0	80.0 - 99.0	Average value: 87.6 Grade Count:7
Hardness, Shore D	41.0 - 60.0	41.0 - 60.0	Average value: 49.3 Grade Count:71
Tensile Strength, Ultimate	7.00 - 34.5 MPa	1020 - 5000 psi	Average value: 13.0 MPa Grade Count:102
Film Tensile Strength at Yield, MD	6.21 - 28.0 MPa	900 - 4060 psi	Average value: 11.5 MPa Grade Count:235
Film Tensile Strength at Yield, TD	5.86 - 100 MPa	850 - 14500 psi	Average value: 11.6 MPa Grade Count:245
Tensile Strength, Yield	8.00 - 22.0 MPa	1160 - 3190 psi	Average value: 11.7 MPa Grade Count:98
Film Elongation at Break, MD	100 - 650 %	100 - 650 %	Average value: 323 % Grade Count:463
Film Elongation at Break, TD	249 - 1330 %	249 - 1330 %	Average value: 590 % Grade Count:462
Film Elongation at Yield, MD	5.60 - 425 %	5.60 - 425 %	Average value: 53.1 % Grade Count:16
Film Elongation at Yield, TD	5.00 - 600 %	5.00 - 600 %	Average value: 75.0 % Grade Count:16
Elongation at Break	50.0 - 1000 %	50.0 - 1000 %	Average value: 448 % Grade Count:110
Elongation at Yield	4.00 - 100 %	4.00 - 100 %	Average value: 34.7 % Grade Count:30
Modulus of Elasticity	0.140 - 0.480 GPa	20.3 - 69.6 ksi	Average value: 0.244 GPa Grade Count:108
Flexural Yield Strength	160 - 290 MPa	23200 - 42100 psi	Average value: 220 MPa Grade Count:15
Flexural Modulus	0.124 - 0.690 GPa	18.0 - 100 ksi	Average value: 0.251 GPa Grade Count:24
Secant Modulus	0.00114 - 1.35 GPa	0.166 - 196 ksi	Average value: 0.305 GPa Grade Count:17
Secant Modulus, MD	0.0179 - 0.372 GPa	2.60 - 54.0 ksi	Average value: 0.196 GPa Grade Count:284
Secant Modulus, TD	0.0221 - 0.414 GPa	3.20 - 60.0 ksi	Average value: 0.222 GPa Grade Count:284
Izod Impact, Notched (ISO)	5.00 - 5.00 kJ/m² @Temperature -30.0 - -30.0 °C	2.38 - 2.38 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 5.00 kJ/m² Grade Count:1
Tensile Impact Strength	23.0 - 147 kJ/m²	10.9 - 69.9 ft-lb/in²	Average value: 51.2 kJ/m² Grade Count:5
	86.0 - 86.0 kJ/m² @Temperature -30.0 - -30.0 °C	40.9 - 40.9 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 86.0 kJ/m² Grade Count:1
Tensile Impact	130 - 350 J/cm	244 - 656 ft-lb/in	Average value: 228 J/cm Grade Count:17
Dart Drop, Total Energy	16.0 - 19.0 J	11.8 - 14.0 ft-lb	Average value: 17.1 J Grade Count:5
	6.20 - 26.0 J @Temperature -40.0 - -40.0 °C	4.57 - 19.2 ft-lb @Temperature -40.0 - -40.0 °F	Average value: 16.9 J Grade Count:5
Puncture Energy	0.203 - 7.00 J	0.150 - 5.16 ft-lb	Average value: 1.72 J Grade Count:49
Coefficient of Friction	0.0900 - 1.50	0.0900 - 1.50	Average value: 0.464 Grade Count:207
Tear Strength, Total	2.00 - 4.00 N	0.450 - 0.899 lb (f)	Average value: 3.00 N Grade Count:7
Tear Strength	20.0 - 373 kN/m	114 - 2130 pli	Average value: 59.8 kN/m Grade Count:31
Elmendorf Tear Strength MD	8.83 - 1070 g	8.83 - 1070 g	Average value: 296 g Grade Count:211
Elmendorf Tear Strength TD	8.34 - 1370 g	8.34 - 1370 g	Average value: 232 g Grade Count:226
Elmendorf Tear Strength, MD	1.20 - 18.1 g/micron	30.5 - 460 g/mil	Average value: 7.45 g/micron Grade Count:167
Elmendorf Tear Strength, TD	2.10 - 100 g/micron	53.3 - 2540 g/mil	Average value: 7.36 g/micron Grade Count:180
Dart Drop Total Energy	13.0 - 31.0 J/cm	0.0244 - 0.0581 ft-lb/mil	Average value: 23.3 J/cm Grade Count:8
Dart Drop	1.30 - 100 g/micron	33.0 - 2540 g/mil	Average value: 4.96 g/micron Grade Count:166
Dart Drop Test	18.0 - 1500 g	0.0397 - 3.31 lb	Average value: 168 g Grade Count:385
Film Tensile Strength at Break, MD	14.0 - 200 MPa	2030 - 29000 psi	Average value: 27.1 MPa Grade Count:446
Film Tensile Strength at Break, TD	11.0 - 57.0 MPa	1600 - 8270 psi	Average value: 21.4 MPa Grade Count:442
Heat Seal Strength	3.00 - 10.8 g/25 mm	0.00661 - 0.0238 lb/in	Average value: 6.64 g/25 mm Grade Count:13
Heat Seal Strength Initiation Temperature	100 - 105 °C	212 - 221 °F	Average value: 104 °C Grade Count:8

Electrical Properties	Metric	English	Comments
Electrical Resistivity	500 - 1.00e+15 ohm-cm	500 - 1.00e+15 ohm-cm	Average value: 5.67e+14 ohm-cm Grade Count:31
Surface Resistance	31000 - 1.00e+14 ohm	31000 - 1.00e+14 ohm	Average value: 5.67e+13 ohm Grade Count:31
Static Decay	2.00 sec	2.00 sec	Average value: 2.00 sec Grade Count:13
Dielectric Constant	2.30	2.30	Average value: 2.30 Grade Count:17
Dissipation Factor	0.000200	0.000200	Average value: 0.000200 Grade Count:17
Comparative Tracking Index	600 V	600 V	Average value: 600 V Grade Count:17

Thermal Properties	Metric	English	Comments
CTE, linear	180 - 230 µm/m-°C	100 - 128 µin/in-°F	Average value: 206 µm/m-°C Grade Count:17
Melting Point	97.8 - 218 °C	208 - 424 °F	Average value: 113 °C Grade Count:267
Crystallization Temperature	95.0 - 104 °C	203 - 219 °F	Average value: 98.4 °C Grade Count:11
Deflection Temperature at 0.46 MPa (66 psi)	38.3 - 45.0 °C	101 - 113 °F	Average value: 42.4 °C Grade Count:19
Vicat Softening Point	70.0 - 109 °C	158 - 228 °F	Average value: 94.6 °C Grade Count:292
Brittleness Temperature	-76.0 - -32.0 °C	-105 - -25.6 °F	Average value: -73.6 °C Grade Count:70
Flammability, UL94	HB	HB	Grade Count:17
Oxygen Index	17.0 %	17.0 %	Average value: 17.0 % Grade Count:17

Optical Properties	Metric	English	Comments
Haze	0.650 - 55.0 %	0.650 - 55.0 %	Average value: 8.55 % Grade Count:451
Gloss	8.20 - 135 %	8.20 - 135 %	Average value: 69.2 % Grade Count:426
Transmission, Visible	55.0 - 90.0 %	55.0 - 90.0 %	Average value: 88.8 % Grade Count:30

Processing Properties	Metric	English	Comments
Processing Temperature	140 - 400 °C	284 - 752 °F	Average value: 189 °C Grade Count:104
Die Temperature	150 - 290 °C	302 - 554 °F	Average value: 203 °C Grade Count:3
Melt Temperature	110 - 260 °C	230 - 500 °F	Average value: 189 °C Grade Count:106
Die Opening	0.0635 - 0.152 cm	0.0250 - 0.0600 in	Average value: 0.103 cm Grade Count:16

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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