Westlake EF1925 Low Density Polyethylene

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Westlake EF1925 Low Density Polyethylene (discontinued **)
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Low Density (LDPE)
Material Notes:	WESTLAKE polyethylene EF1925 is a low density formulation suggested for film applications that require heat-sealing treated-to-treated film surfaces and where good clarity is important. Common applications include bread bags, fresh produce bags, and converter film requiring printability. Application/Uses Bread bags Produce bags FDA: This material complies with FDA regulations in 21 CFR, section 177.1520. Kosher Compliant. All information provided by Westlake Chemical
Key Words:	Good clarity
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Physical Properties	Metric	English	Comments

Density	0.921 g/cc	0.0333 lb/in³	ASTM D1505
Thickness	31.8 microns	1.25 mil
Melt Flow	2.5 g/10 min @Load 2.16 kg, Temperature 190 °C	2.5 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Film Elongation at Break, MD	250 %	250 %	500mm/min; ASTM D882
Film Elongation at Break, TD	750 %	750 %	500mm/min; ASTM D882
Dart Drop	3.15 g/micron	80.0 g/mil	ASTM D1709
Dart Drop Test	100 g	0.221 lb	ASTM D1709
Film Tensile Strength at Break, MD	26.2 MPa	3800 psi	ASTM D882
Film Tensile Strength at Break, TD	18.6 MPa	2700 psi	ASTM D882
1% Secant Modulus, MD	186 MPa	27000 psi	ASTM D882
1% Secant Modulus, TD	221 MPa	32000 psi	ASTM D882

Optical Properties	Metric	English	Comments
Haze	5.5 %	5.5 %	ASTM D1003
Gloss	75 %	75 %	at 45º; ASTM D2457

Processing Properties	Metric	English	Comments
Melt Temperature	182 - 199 °C	360 - 390 °F	with BUR of 1.5:1 or higher
Blow-up Ratio (BUR)	2.5	2.5

Descriptive Properties
Process	Film

**
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PWESF081 / 84518

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