Bayport Polymers Baystar™ HL 428 HDPE Film Grade, Film Properties

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Bayport Polymers 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	Original Value	Comments

Density	0.947 g/cc	ASTM D-792
Water Vapor Transmission	0.700 g/100 in²/day @Temperature 37.8 °C	ASTM F1249
Thickness	1.00 mil	As Tested
Melt Flow	0.23 g/10 min @Load 2.16 kg, Temperature 190 °C	ASTM D-1238
High Load Melt Index	20 g/10 min @Load 21.6 kg, Temperature 190 °C	ASTM D-1238

Mechanical Properties	Original Value	Comments
Film Tensile Strength at Yield, MD	3400 psi	ASTM D-882, A
Film Tensile Strength at Yield, TD	3800 psi	ASTM D-882, A
Film Elongation at Break, MD	450 %	ASTM D-882, A
Film Elongation at Break, TD	600 %	ASTM D-882, A
Elmendorf Tear Strength MD	10 g	ASTM D1922
Elmendorf Tear Strength TD	1450 g	ASTM D1922
Dart Drop Test	<= 50.0 g	ASTM D1709, A
Film Tensile Strength at Break, MD	9000 psi	ASTM D-882, A
Film Tensile Strength at Break, TD	2700 psi	ASTM D-882, A

Thermal Properties	Original Value	Comments
Melting Point	267 °F	ASTM D-3417

Processing Properties	Original Value	Comments
Melt Temperature	380 - 420 °F	Extrusion
Blow-up Ratio (BUR)	2.5	As Tested

Descriptive Properties
FLH/D	6:1	as tested

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PBAYST816 / 251112

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