Overview of materials for Medium Density Polyethylene (MDPE), Film Grade

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Overview of materials for Medium Density Polyethylene (MDPE), Film Grade
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Medium Density (MDPE); Medium Density Polyethylene (MDPE), Film Grade
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Medium Density Polyethylene (MDPE), 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	0.925 - 0.958 g/cc	0.0334 - 0.0346 lb/in³	Average value: 0.937 g/cc Grade Count:32
Water Vapor Transmission	7.76 - 14.0 g/m²/day	0.500 - 0.900 g/100 in²/day	Average value: 11.4 g/m²/day Grade Count:4
	10.864 - 12.416 g/m²/day @Temperature 37.8 - 37.8 °C	0.69964 - 0.79959 g/100 in²/day @Temperature 100 - 100 °F	Average value: 11.6 g/m²/day Grade Count:2
Oxidative Induction Time (OIT)	25.0 - 30.0 min @Temperature 200 - 200 °C	25.0 - 30.0 min @Temperature 392 - 392 °F	Average value: 27.0 min Grade Count:6
Thickness	20.0 - 38.1 microns	0.787 - 1.50 mil	Average value: 27.5 microns Grade Count:12
Melt Flow	0.0570 - 30.0 g/10 min	0.0570 - 30.0 g/10 min	Average value: 6.77 g/10 min Grade Count:32

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	60.0	60.0	Average value: 60.0 Grade Count:6
Film Tensile Strength at Yield, MD	12.4 - 35.2 MPa	1800 - 5100 psi	Average value: 20.7 MPa Grade Count:23
Film Tensile Strength at Yield, TD	14.7 - 29.6 MPa	2130 - 4300 psi	Average value: 19.6 MPa Grade Count:23
Tensile Strength, Yield	18.0 - 27.6 MPa	2610 - 4000 psi	Average value: 21.9 MPa Grade Count:3
Film Elongation at Break, MD	150 - 800 %	150 - 800 %	Average value: 529 % Grade Count:29
Film Elongation at Break, TD	10.0 - 900 %	10.0 - 900 %	Average value: 666 % Grade Count:29
Elongation at Break	600 - 910 %	600 - 910 %	Average value: 797 % Grade Count:3
Flexural Modulus	0.590 - 0.850 GPa	85.6 - 123 ksi	Average value: 0.751 GPa Grade Count:13
Secant Modulus, MD	0.214 - 1.07 GPa	31.0 - 155 ksi	Average value: 0.431 GPa Grade Count:15
Secant Modulus, TD	0.172 - 1.37 GPa	25.0 - 199 ksi	Average value: 0.514 GPa Grade Count:15
Izod Impact, Notched	1.15 - 8.00 J/cm	2.15 - 15.0 ft-lb/in	Average value: 4.92 J/cm Grade Count:3
Elmendorf Tear Strength MD	10.0 - 350 g	10.0 - 350 g	Average value: 72.7 g Grade Count:20
Elmendorf Tear Strength TD	35.0 - 1450 g	35.0 - 1450 g	Average value: 508 g Grade Count:20
Elmendorf Tear Strength, MD	0.800 - 3.94 g/micron	20.3 - 100 g/mil	Average value: 1.83 g/micron Grade Count:9
Elmendorf Tear Strength, TD	3.94 - 19.7 g/micron	100 - 500 g/mil	Average value: 13.7 g/micron Grade Count:9
Dart Drop	1.57 - 5.91 g/micron	40.0 - 150 g/mil	Average value: 3.39 g/micron Grade Count:8
Dart Drop Test	30.0 - 300 g	0.0662 - 0.662 lb	Average value: 110 g Grade Count:26
Film Tensile Strength at Break, MD	4.83 - 76.5 MPa	700 - 11100 psi	Average value: 47.1 MPa Grade Count:29
Film Tensile Strength at Break, TD	17.0 - 66.2 MPa	2470 - 9600 psi	Average value: 38.9 MPa Grade Count:29

Thermal Properties	Metric	English	Comments
Melting Point	116 - 272 °C	241 - 522 °F	Average value: 133 °C Grade Count:16
Vicat Softening Point	116 - 124 °C	241 - 255 °F	Average value: 120 °C Grade Count:12

Optical Properties	Metric	English	Comments
Haze	4.80 - 52.0 %	4.80 - 52.0 %	Average value: 11.6 % Grade Count:12
Gloss	12.0 - 90.0 %	12.0 - 90.0 %	Average value: 60.1 % Grade Count:13

Processing Properties	Metric	English	Comments
Processing Temperature	20.0 - 220 °C	68.0 - 428 °F	Average value: 188 °C Grade Count:11
Melt Temperature	193 - 280 °C	380 - 536 °F	Average value: 219 °C 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 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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O3907 / 78271

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