Bayport Polymers Baystar™ 9458 HDPE Film Grade

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Bayport Polymers Baystar™ 9458 HDPE Film Grade
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Medium Density (MDPE); Medium Density Polyethylene (MDPE), Film Grade
Material Notes:	Medium molecular weight grade. Excellent bubble stability, good compatibility with LDPE and LLDPE, good heat resistance, high stiffness and tensile strength. Applications: Release liners, Stand-up bags, Coextruded films, Shipping sacks, Multi-walled liners, Oriented film structures, Specialty packaging. This former Total Petrochemicals grade is now a part of the Bayport Polymers joint venture.
Key Words:	Excellent bubble stability
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Physical Properties	Metric	English	Comments

Density	0.958 g/cc	0.0346 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; 2.5 BUR
Melt Flow	0.45 g/10 min @Load 2.16 kg, Temperature 190 °C	0.45 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D-1238

Mechanical Properties	Metric	English	Comments
Film Tensile Strength at Yield, MD	31.0 MPa	4500 psi	ASTM D-882, A
Film Tensile Strength at Yield, TD	17.9 MPa	2600 psi	ASTM D-882, A
Film Elongation at Break, MD	270 %	270 %	ASTM D-882, A
Film Elongation at Break, TD	<= 10 %	<= 10 %	ASTM D-882, A
Elmendorf Tear Strength MD	15 g	15 g	ASTM D1922
Elmendorf Tear Strength TD	1050 g	1050 g	ASTM D1922
Dart Drop Test	<= 50.0 g	<= 0.110 lb	ASTM D1709, A
Film Tensile Strength at Break, MD	53.1 MPa	7700 psi	ASTM D-882, A
Film Tensile Strength at Break, TD	17.9 MPa	2600 psi	ASTM D-882, A
1% Secant Modulus, MD	1070 MPa	155000 psi	ASTM D-882, A
1% Secant Modulus, TD	1370 MPa	199000 psi	ASTM D-882, A

Processing Properties	Metric	English	Comments
Melt Temperature	193 - 216 °C	380 - 420 °F	Extrusion

Descriptive Properties
Process	Film

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PBAYST812 / 177710

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