Dow Dow™ 748I LDPE

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Dow Dow™ 748I LDPE
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Extrusion Grade
Material Notes:	Product Description: A low density polyethylene for stretching/clip film applications Complies with: US FDA 21 CFR 177.1520©2.1; Canadian HPFB No Objection (with Limitations). Consult the regulations for complete details. Availability: Latin America; North America Additive: Antiblock: No; Processing Aid: No; Slip: No Agency Ratings: FDA 21 CFR 177.1520©2.1; Canadian HPFB No Objection Form: Pellets Processing Method: Blown Film Information provided by The Dow Chemical Company
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Physical Properties	Metric	English	Comments

Density	0.923 g/cc	0.0333 lb/in³	ASTM D792
Melt Flow	7.0 g/10 min @Load 2.16 kg, Temperature 190 °C	7.0 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Film Tensile Strength at Yield, MD	10.6 MPa @Thickness 0.0254 mm	1540 psi @Thickness 0.00100 in	ASTM D882
Film Tensile Strength at Yield, TD	10.0 MPa @Thickness 0.0254 mm	1450 psi @Thickness 0.00100 in	ASTM D882
Film Elongation at Break, MD	510 % @Thickness 0.0254 mm	510 % @Thickness 0.00100 in	ASTM D882
Film Elongation at Break, TD	640 % @Thickness 0.0254 mm	640 % @Thickness 0.00100 in	ASTM D882
Elmendorf Tear Strength MD	190 g @Thickness 0.0254 mm	190 g @Thickness 0.00100 in	ASTM D1922
Elmendorf Tear Strength TD	260 g @Thickness 0.0254 mm	260 g @Thickness 0.00100 in	ASTM D1922
Dart Drop Test	43.0 g @Thickness 0.0254 mm	0.0948 lb @Thickness 0.00100 in	ASTM D1709A
Film Tensile Strength at Break, MD	27.1 MPa @Thickness 0.0254 mm	3930 psi @Thickness 0.00100 in	ASTM D882
Film Tensile Strength at Break, TD	17.5 MPa @Thickness 0.0254 mm	2540 psi @Thickness 0.00100 in	ASTM D882

Thermal Properties	Metric	English	Comments
Melting Point	110 °C	230 °F
Vicat Softening Point	88.9 °C	192 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Haze	1.1 % @Thickness 0.0254 mm	1.1 % @Thickness 0.00100 in	ASTM D1003
Gloss	92 % @Thickness 0.0254 mm	92 % @Thickness 0.00100 in	45°; ASTM D2457

Processing Properties	Metric	English	Comments
Melt Temperature	260 °C	500 °F	Extrusion

Descriptive Properties
Film Puncture Resistance	32 ft-lb/in3		2.0 mil
Film Toughness	1880 ft-lb/in3		TD, 1.0 mil, ASTM D882
	2220 ft-lb/in3		MD, 1.0 mil, ASTM D882

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.

PDOWF474 / 311167

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