Baystar™ HL 428 HDPE Film Grade, Film Properties

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Baystar™ HL 428 HDPE Film Grade, Film Properties
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Film Grade
Material Notes:	Characteristics: Excellent processability Good tear and impact strength Good stiffness Excellent compatibility with LDPE and LLDPE Excellent drawdown Applications: Multi-wall liners Gas flush poultry bags Mailing envelopes Heavy-duty shipping sacks Fresh cut produce packaging Coextruded films Film tested was produced at 1.0 mil with a 2.5:1 BUR Information provided by Bayport Polymers LLC.
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Physical Properties	Metric	English	Comments

Density	0.947 g/cc	0.0342 lb/in³	ASTM D-792
Water Vapor Transmission	10.9 g/m²/day @Temperature 37.8 °C	0.700 g/100 in²/day @Temperature 100 °F	ASTM F1249
Thickness	25.4 microns	1.00 mil	As Tested
Melt Flow	0.23 g/10 min @Load 2.16 kg, Temperature 190 °C	0.23 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D-1238
High Load Melt Index	20 g/10 min @Load 21.6 kg, Temperature 190 °C	20 g/10 min @Load 47.6 lb, Temperature 374 °F	ASTM D-1238

Mechanical Properties	Metric	English	Comments
Film Tensile Strength at Yield, MD	23.4 MPa	3400 psi	ASTM D-882, A
Film Tensile Strength at Yield, TD	26.2 MPa	3800 psi	ASTM D-882, A
Film Elongation at Break, MD	450 %	450 %	ASTM D-882, A
Film Elongation at Break, TD	600 %	600 %	ASTM D-882, A
Elmendorf Tear Strength MD	10 g	10 g	ASTM D1922
Elmendorf Tear Strength TD	1450 g	1450 g	ASTM D1922
Dart Drop Test	<= 50.0 g	<= 0.110 lb	ASTM D1709, A
Film Tensile Strength at Break, MD	62.1 MPa	9000 psi	ASTM D-882, A
Film Tensile Strength at Break, TD	18.6 MPa	2700 psi	ASTM D-882, A

Thermal Properties	Metric	English	Comments
Melting Point	131 °C	267 °F	ASTM D-3417

Processing Properties	Metric	English	Comments
Melt Temperature	193 - 216 °C	380 - 420 °F	Extrusion
Blow-up Ratio (BUR)	2.5	2.5	As Tested

Descriptive Properties
FLH/D	6:1		as tested

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.

PBAYST816 / 251112

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