ExxonMobil OPPalyte® 278 WOS-2 OPP Film

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ExxonMobil OPPalyte® 278 WOS-2 OPP Film (discontinued **)
Categories:	Polymer; Film; Thermoplastic; Polypropylene (PP); Polypropylene, Film Grade
Material Notes:	Product Description: One-side treated, on-side sealable, white opaque OPP film with a proprietary cavitated core. WOS-2 was developed to provide improvements over 278 WOS in terms of lower and more consistent COF, lower MST, and improved print performance. Availability: Latin America, North America and South America Key Features: Outstanding opacity Robust machinablity Bright white appearance Features: In Lamination Lap Sealable Light Barrier Applications: Bakery Biscuits/Cookie/Crackers Dairy Products Ice Cream Uses: HFFS Flexible Packaging Pre-made Bags – Flexible Packaging VFFS Flexible Packaging Processing Method: Inner Web Adhesive Lamination, Inner Web Extrusion Lamination, Solvent Flexographic Printing, Solvent Rotogravure Printing, Surface Print Unsupported and Water-based Flexographic Printing Information provided by ExxonMobil Chemical
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Physical Properties	Original Value	Comments

Water Vapor Transmission	4.80 g/m²/day @Temperature 38.0 °C	90% RH; ExxonMobil Method
Thickness	1.70 mil	ExxonMobil Method
Coating Weight	15.5 lb/ream	ExxonMobil Method

Mechanical Properties	Original Value	Comments
Coefficient of Friction	0.36	Treated; ExxonMobil Method
Film Tensile Strength at Break, MD	11400 psi	20 in/min, 2.0 in Jaw Separation; ExxonMobil Method
Film Tensile Strength at Break, TD	17800 psi	20 in/min, 2.0 in Jaw Separation; ExxonMobil Method

Thermal Properties	Original Value	Comments
Shrinkage, MD	4.5 % @Temperature 135 °C	ExxonMobil Method
Shrinkage, TD	4.0 % @Temperature 135 °C	ExxonMobil Method

Optical Properties	Original Value	Comments
Gloss	70 %	45°, Treated Surface; ExxonMobil Method
Transmission, Visible	24 %	ExxonMobil Method

Descriptive Properties
Crimp Seal MST	186°F	untreated
Crimp Seal Strength	480 g/in	210°F, 20psi, 3/4 sec, Untreated
Wetting Tension	0.8 receding COS theta
Yield	27800 in²/lb

**
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PEXB441 / 37746

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