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

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Overview of materials for Low Density Polyethylene (LDPE), Blow Molding Grade
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Blow Molding Grade
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Low Density Polyethylene (LDPE), Blow Molding 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	0.912 - 0.955 g/cc	0.0329 - 0.0345 lb/in³	Average value: 0.922 g/cc Grade Count:75
Environmental Stress Crack Resistance	5.00 - 1000 hour	5.00 - 1000 hour	Average value: 209 hour Grade Count:5
Thickness	31.8 - 50.8 microns	1.25 - 2.00 mil	Average value: 34.5 microns Grade Count:5
Melt Flow	0.160 - 20.0 g/10 min	0.160 - 20.0 g/10 min	Average value: 1.65 g/10 min Grade Count:76

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	45.0 - 59.0	45.0 - 59.0	Average value: 50.3 Grade Count:27
Tensile Strength, Ultimate	10.3 - 18.0 MPa	1500 - 2610 psi	Average value: 13.8 MPa Grade Count:25
Film Tensile Strength at Yield, MD	9.38 - 25.5 MPa	1360 - 3700 psi	Average value: 14.8 MPa Grade Count:8
Film Tensile Strength at Yield, TD	9.31 - 21.4 MPa	1350 - 3100 psi	Average value: 13.3 MPa Grade Count:9
Tensile Strength, Yield	8.48 - 26.2 MPa	1230 - 3800 psi	Average value: 12.7 MPa Grade Count:27
Film Elongation at Break, MD	100 - 1070 %	100 - 1070 %	Average value: 316 % Grade Count:30
Film Elongation at Break, TD	450 - 1340 %	450 - 1340 %	Average value: 642 % Grade Count:30
Elongation at Break	80.0 - 920 %	80.0 - 920 %	Average value: 534 % Grade Count:31
Elongation at Yield	11.0 - 640 %	11.0 - 640 %	Average value: 334 % Grade Count:3
Modulus of Elasticity	0.150 - 0.520 GPa	21.8 - 75.4 ksi	Average value: 0.300 GPa Grade Count:16
Flexural Modulus	0.152 - 2.21 GPa	22.0 - 320 ksi	Average value: 0.327 GPa Grade Count:25
Secant Modulus, MD	0.130 - 0.214 GPa	18.9 - 31.0 ksi	Average value: 0.181 GPa Grade Count:24
Secant Modulus, TD	0.160 - 0.591 GPa	23.2 - 85.7 ksi	Average value: 0.223 GPa Grade Count:23
Elmendorf Tear Strength MD	150 - 780 g	150 - 780 g	Average value: 327 g Grade Count:16
Elmendorf Tear Strength TD	100 - 1820 g	100 - 1820 g	Average value: 306 g Grade Count:28
Dart Drop	2.20 - 4.72 g/micron	56.0 - 120 g/mil	Average value: 3.31 g/micron Grade Count:4
Dart Drop Test	60.0 - 1300 g	0.132 - 2.87 lb	Average value: 161 g Grade Count:28
Film Tensile Strength at Break, MD	15.0 - 40.0 MPa	2180 - 5800 psi	Average value: 25.3 MPa Grade Count:28
Film Tensile Strength at Break, TD	15.0 - 45.0 MPa	2180 - 6530 psi	Average value: 20.4 MPa Grade Count:26

Thermal Properties	Metric	English	Comments
Melting Point	108 - 121 °C	226 - 250 °F	Average value: 113 °C Grade Count:12
Deflection Temperature at 0.46 MPa (66 psi)	40.0 - 54.0 °C	104 - 129 °F	Average value: 47.0 °C Grade Count:7
Vicat Softening Point	85.0 - 111 °C	185 - 232 °F	Average value: 94.6 °C Grade Count:39
Brittleness Temperature	-76.1 - 0.500 °C	-105 - 32.9 °F	Average value: -70.5 °C Grade Count:15

Optical Properties	Metric	English	Comments
Haze	3.40 - 22.0 %	3.40 - 22.0 %	Average value: 8.51 % Grade Count:27
Gloss	20.0 - 120 %	20.0 - 120 %	Average value: 70.8 % Grade Count:16

Processing Properties	Metric	English	Comments
Processing Temperature	150 - 225 °C	302 - 437 °F	Average value: 187 °C Grade Count:4
Melt Temperature	110 - 260 °C	230 - 500 °F	Average value: 190 °C Grade Count:14

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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