Dow LDPE 641I Low Density Polyethylene, Liner Film Grade

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Dow LDPE 641I Low Density Polyethylene, Liner Film Grade
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Film Grade
Material Notes:	DOW LDPE 641I resin is a general purpose liner film resin for thin gauge applications requiring good drawdown and excellent toughness. It contains medium levels of slip additive and low levels of antiblock additive. This material complies with U.S.FDA regulation 21 CFR 177.1520(c) 2.1 for food contact applications. The regulation should be consulted for complete details. Film properties below based on a film thickness of 40 µm. Data provided by Dow Chemical.
Key Words:	Dow PE
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Physical Properties	Metric	English	Comments

Density	0.922 g/cc	0.0333 lb/in³
Thickness	40.0 microns	1.57 mil
Melt Flow	2.0 g/10 min @Load 2.16 kg	2.0 g/10 min @Load 4.76 lb

Mechanical Properties	Metric	English	Comments
Film Tensile Strength at Yield, MD	11.4 MPa	1650 psi
Film Tensile Strength at Yield, TD	10.3 MPa	1490 psi
Film Elongation at Break, MD	290 %	290 %
Film Elongation at Break, TD	560 %	560 %
Coefficient of Friction	0.10	0.10
Elmendorf Tear Strength MD	520 g	520 g
Elmendorf Tear Strength TD	250 g	250 g
Elmendorf Tear Strength, MD	13.0 g/micron	330 g/mil
Elmendorf Tear Strength, TD	6.30 g/micron	160 g/mil
Dart Drop	2.40 g/micron	61.0 g/mil
Film Tensile Strength at Break, MD	25.9 MPa	3760 psi
Film Tensile Strength at Break, TD	17.6 MPa	2550 psi

Optical Properties	Metric	English	Comments
Haze	8.5 %	8.5 %
Gloss	61 %	61 %	45°

Processing Properties	Metric	English	Comments
Processing Temperature	191 °C	376 °F	Film extrusion temperature

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	See notes for details.

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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PDW509 / 34578

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