Dow LDPE 640I Low Density Polyethylene, Liner Film Grade

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Dow LDPE 640I 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 640I resin is a barefoot general purpose liner film resin for thin gauge applications requiring good drawdown and excellent toughness. 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 30 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	30.0 microns	1.18 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	395 %	395 %
Film Elongation at Break, TD	530 %	530 %
Coefficient of Friction	0.70	0.70
Elmendorf Tear Strength MD	410 g	410 g
Elmendorf Tear Strength TD	250 g	250 g
Elmendorf Tear Strength, MD	13.7 g/micron	348 g/mil
Elmendorf Tear Strength, TD	8.30 g/micron	211 g/mil
Dart Drop	3.20 g/micron	81.3 g/mil
Film Tensile Strength at Break, MD	29.6 MPa	4290 psi
Film Tensile Strength at Break, TD	17.9 MPa	2600 psi

Optical Properties	Metric	English	Comments
Haze	7.5 %	7.5 %
Gloss	63 %	63 %	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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PDW507 / 34576

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