Westlake EF528 18.5% Ethylene Vinyl Acetate Copolymer

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Westlake EF528 18.5% Ethylene Vinyl Acetate Copolymer
Categories:	Polymer; Thermoplastic; Ethylene Vinyl Acetate
Material Notes:	Westlake ELEVATE™ EF528 is an ethylene vinyl acetate copolymer with 18.5% VA. EF528 is designed for blown and cast films requiring excellent optics and low heat seal initiation. High melt strength makes DA528 an excellent choice for profile extrusions, molding, and foaming applications requiring high VA content. Application/Uses Flexible packaging films Peelable seals, adhesive layers Injection and blow molding Hot melt adhesives and blends Profile extrusions, tubing, wire & cable
Key Words:	Excellent optics and low heat seal initiation. 18.5% EVA.
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Physical Properties	Metric	English	Comments

Density	0.940 g/cc	0.0340 lb/in³	D1505
Vinyl Acetate Content	18.5 %	18.5 %
Thickness	38.1 microns	1.50 mil	Thickness Tested
Melt Flow	2.5 g/10 min	2.5 g/10 min	D1238

Mechanical Properties	Metric	English	Comments
Dart Drop Test	10.2 g	0.0225 lb	D1709
	390 g	0.860 lb	D1709
Film Tensile Strength at Break, MD	24.8 MPa	3600 psi	D638
Film Tensile Strength at Break, TD	24.1 MPa	3500 psi	D638
1% Secant Modulus, MD	42.1 MPa	6110 psi	D882
1% Secant Modulus, TD	50.3 MPa	7300 psi	D882

Thermal Properties	Metric	English	Comments
Melting Point	85.0 °C	185 °F	DSC Peak; D33418

Optical Properties	Metric	English	Comments
Haze	3.5 %	3.5 %	D1003
Gloss	82 %	82 %	at 45; D2457

Processing Properties	Metric	English	Comments
Melt Temperature	193 °C	379 °F	Blown Film
	210 °C	410 °F	Cast Film
Blow-up Ratio (BUR)	2.5	2.5

Descriptive Properties
process	Film

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.

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PBP1129 / 133377

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