Cortec barrier paper
Moisture barrier paper. Photo Cortec

Moisture barrier paper is a must-have for the packaging industry. Unfortunately, polyethylene (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. A fully repulpable barrier material is the answer for environmentally conscious users who want to be part of the ‘circular economy’ in their packaging choices. Cortec meets this need with EcoShield barrier paper, a fully recyclable barrier paper that does not rely on plastic coatings for moisture resistance.

EcoShield Barrier Paper Performance

EcoShield barrier paper demonstrates a Water Vapor Transmission Rate (WVTR) comparable to poly-coated 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. poly-coated and waxed paper results are as follows, with EcoShield® Barrier Paper falling within the WVTR range of poly-coated paper and performing much better than waxed paper.


EcoShield Barrier Paper

Polycoated Paper

Waxed Paper







Example test ranges are for EcoShield barrier paper, a comparable polyethene-coated paper, and commercial waxed paper.

‘Circular Economy’ in Action

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.

Multi-Purpose Packaging

A moisture barrier is valuable in several ways. It helps keep moisture out of the package, which can be especially important for moisture sensitive components in a high humidity environment. It can help protect against oils and greases leaching out of the paper. It can help the paper maintain its physical durability in the presence of moisture within or outside the package. These barrier properties can have multiple purposes in many industries. Potential uses include but are not limited to the following –

  • Packaging moisture sensitive components

  • Wrapping greasy items

  • Lining wooden pallets or corrugated boxes (to keep out moisture or other corrosives that can leach through)

  • Protecting work surfaces

Whatever the end use, EcoShield barrier paper is a great environmentally responsible alternative to plastic-coated moisture barrier paper. This sustainable, ‘green’ packaging option meets an important need while taking a responsible approach to both the beginning and the end of the product life cycle. Contact Cortec if you are ready to say goodbye to plastic-coated paper and welcome a recyclable moisture barrier paper into your packaging stock.

Packaging South Asia — resilient, growing and impactful — daily, monthly — always responsive

The multi-channel B2B in print and digital 17-year-old platform matches the industry’s growth trajectory. The Indian, South Asian, Southeast Asian, and Middle East packaging industries are looking beyond the resilience of the past three years. They are resuming capacity expansion and diversification, with high technology and automation in new plants and projects.

As we present our 2024 publishing plan, India’s real GDP growth for the financial year ending 31 March 2024 will exceed 6%. The packaging industry growth will match the GDP growth in volume terms and surpass it by at least 3% in terms of nominal growth allowing for price inflation in energy, raw materials, consumables, and capital equipment.

The capacity for flexible film manufacturing in India increased by 45% over the past four years. With orders in place, we expect another 20% capacity addition in 2024 and 2025. Capacities in monocartons, corrugation, aseptic liquid packaging, and labels are growing similarly. As the consumption story returns over the next six months, we expect demand to return and exceed the growth trajectory of previous years. The numbers are positive for most of the economies in the region – and as shown by our analytics, our platform increasingly reaches and influences these.

For responsible and sustainable packaging, with its attendant regulations and compliances, there is significant headroom to grow in India and the region. Our coverage includes the entire packaging supply chain – from concept to shelf and to waste collection, sorting, and recycling.

We target brand owners, product managers, raw material suppliers, packaging designers and converters, and recyclers. This is a large and complex canvas – the only thing that can work is your agile thinking and innovation together with our continuous learning and persistence.

The coming year looks to be an up year in this region, and this is the right time to plan your participation and marketing communication – in our rich and highly targeted business platform with human resources on the ground. Share your thoughts and plans to inspire and mobilize our editorial and advertising teams!

For editorial [email protected] — for advertisement [email protected] and for subscriptions [email protected]

– Naresh Khanna (25 October 2023)

Subscribe Now
unnamed 1


Subscribe to our Newsletter


Please enter your comment!
Please enter your name here