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Moisture Barrier Paper

Cortec’s EcoShield® barrier paper is made with a water-based barrier coating that creates an environmentally acceptable, fully recyclable replacement for polycoated and wax papers.

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It can be used in a variety of applications, including wrapping oily and greasy parts, as well as other moisture sensitive components. It can also be used as a moisture barrier liner for wood pallets or corrugated boxes.

Moisture barrier paper is a must-have for the packaging industry. Unfortunately, PE or wax coatings are the traditional means of sealing porous paper to slow the transmission of water vapor. The resulting product presents an environmental problem because it cannot be recycled through normal channels.

Cortec's EcoShield barrier paper demonstrates a Water Vapor Transmission Rate (WVTR) comparable to polycoated paper and much superior to waxed paper. This rate refers to the amount of water vapor able to pass through a square meter of paper in one hour. A lower number indicates that less moisture was able to get through (i.e., the paper has better barrier properties). EcoShield barrier paper vs. polycoated and waxed paper results are as follows, with EcoShield barrier paper falling within the WVTR range of polycoated paper and performing much better than waxed paper.

In addition to its competitive barrier properties, EcoShield barrier paper has several environmental advantages that make it a good example of the circular economy in action. To begin with, EcoShield barrier paper is a USDA Certified Biobased Product. It contains 65% USDA certified biobased content and is a qualified product under the mandatory federal purchasing initiative of the USDA BioPreferred Program. One of the purposes of the BioPreferred Program is to encourage the production and use of products sourced from renewable materials. Cortec demonstrates this environmental responsibility by making EcoShield barrier paper from paper that contains recycled fibers and carries FSC®, PEFC™, and SFI® certificates for sustainable forestry management. EcoShield barrier paper passes TAPPI T 240 om-12 Repulpability Testing and can be recycled like other non-PE coated paper products at the end of its lifecycle.

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