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	Original Value	Comments

Density	0.922 g/cc
Thickness	30.0 microns
Melt Flow	2.0 g/10 min @Load 2.16 kg

Mechanical Properties	Original Value	Comments
Film Tensile Strength at Yield, MD	11.4 MPa
Film Tensile Strength at Yield, TD	10.3 MPa
Film Elongation at Break, MD	395 %
Film Elongation at Break, TD	530 %
Coefficient of Friction	0.70
Elmendorf Tear Strength MD	410 g
Elmendorf Tear Strength TD	250 g
Elmendorf Tear Strength, MD	13.7 g/micron
Elmendorf Tear Strength, TD	8.30 g/micron
Dart Drop	3.20 g/micron
Film Tensile Strength at Break, MD	29.6 MPa
Film Tensile Strength at Break, TD	17.9 MPa

Optical Properties	Original Value	Comments
Haze	7.5 %
Gloss	63 %	45°

Processing Properties	Original Value	Comments
Processing Temperature	191 °C	Film extrusion temperature

Compliance Properties	Original Value	Comments
FDA	Yes	See notes for details.

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PDW507 / 34576

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