EarthLiner is a waterproof corrugated liner that’s engineered for recyclability.

EarthLiner® is an innovative liner composite material comprised of a clear or bright, white, mineralized, low density polyethylene surface on recycled, post-consumer and/or non-bleached virgin liners.

EarthLiner is a recyclable liner material that delivers a premium print surface comparable to virgin bleached fiberboards and Kemi boards but with the added benefit of waterproof barrier performance at neutral price.

Ideal for all types of corrugated packaging and POP display applications, EarthLiner may be to ensure your corrugated packaging or POP display withstands the rigors of its use under harsh water or moisture conditions.

In addition to corrugated applications, EarthLiner may be used for flexible pouches and product wraps among others.

Packaging made using EarthLiner often qualifies for the “Widely Recycled” How2Recycle* mark. *How2Recycle marks are subject to SPC approval. All inquiries should be directed to

To learn more, download our EarthLiner One Sheet and give us a call today to discuss your next project.


FAQ'S About EarthLiner


What products are ideal for EarthLiner?

Ideal packaging applications for EarthLiner include wax replacement for direct food contact corrugated packaging, premium soft-touch corrugated boxes for electronics, POP displays for high end cosmetics, electronics, toys, heath and wellness and a variety of multi-layer flexible pouches, sacks and bags. EarthLiner is a good alternative for paper packaging applications where recyclability is important without compromising aesthetics, functionality or recyclability. For more information, visit our Applications page.

Where is EarthLiner available?

EarthLiner is available through select licensees and preferred vendors throughout the world. To learn more, visit our Preferred Vendors page or contact Todd Gasparik at 949-610-7063 or

Is EarthLiner FDA compliant for direct food contact?

Yes, EarthLiner is FDA compliant for direct food contact. (a copy of the FDA compliance letter is available upon request)

Is EarthLiner repulpable?

Yes, corrugated packaging made using EarthLiner is engineered to be recycled through existing paper recycling streams without any modification, special handling. Corrugated packaging using EarthLiner may be baled as OCC.

All environmental claims in the US are subject to FTC Green Guides. Prior to making any environmental claims on your package, we encourage to you to contact Smart Planet Technologies.

Is EarthLiner compostable?

Smart Planet Technologies offers a variety of custom mineralized resin blends designed to meet specific criteria such as compostability. To learn more about our compostable EarthLiner options, contact Todd Gasparik at 949-610-7063 or to discuss the specific details of your project.

Does EarthLiner heat seal?

Yes, when compared to corrugated box boards with 100% LDPE, EarthLiner has enhanced heat seal capabilities and may be run at standard high line speeds. (3rd party heat seal testing results are available upon request)

Does EarthLiner provide barrier performance?

When compared to corrugated box boards with 100% LDPE, EarthLiner provides superior moisture, oil, grease and fatty acid barrier performance. (3rd party barrier testing results are available upon request – i.e. MVTR, Cobb, Canola Oil, 3M Kit Test etc.)

How much does EarthLiner cost?

EarthLiner pricing depends on which corrugated substrate is used but is typically cost neutral compared to Kemi board or poly-coated liners. For additional questions, please contact Todd Gasparik at 949-610-7063 or

Why hasn’t my packaging company or paper mill told me about EarthLiner?

While some packaging converters may simply not be aware of EarthLiner, we’re happy to bring them up to speed on all of the benefits associated with using it. Keeping in mind that EarthLiner is made using recycled fiberboard, virgin paper mills may see this product as competitive. To learn more, contact Todd Gasparik at 949-610-7063 or