Highly-mineralized resin composites that offer performance, economic and environmental benefits compared to traditional plastic coatings 




EarthCoating® is a highly-mineralized resin alternative to 100% plastic coatings for paper-based barrier packaging applications.

Ideal for all types of paperboard barrier packaging applications including paper cups, food trays, folding cartons, take out boxes, labels, liners, corrugated packaging, flexible bags and more, EarthCoating® delivers premium aesthetics, functionality and barrier performance compared to traditional plastic coatings. Paperboards with EarthCoating® may be easily processed into recycled paper using conventional paper recycling equipment and use 51% less plastic than conventional plastic-coated paperboard barrier materials.

Available in clear and white formulations using various mineralized resin blends, EarthCoating® may be customized to meet your specific aesthetic, functional, barrier and ecological needs.

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







Traditionally, mixed grade paper barrier packaging applications such as paper cups, take out boxes,  folding cartons, etc.  are coated with 100% polyethylene and other similar materials, which make the resulting products poor candidates for repulping because of the difficulty recyclers have processing the plastic-coated materials.

By contrast, mixed grade paper barrier packaging applications made with EarthCoating® provide a great potential for post-consumer repulpability because they can be easily processed through the paper recycling stream using conventional paper recycling equipment. Paperboards with EarthCoating® offer a repulpable alternative for any polyethylene-coated paper packaging material.  Unlike traditional plastic coatings which break into large, light flakes that clog the screens during the recycling process, EarthCoating® fragments into small dense particles that are easily removed as part of the recycling process.

Click Here to view our Repulpability Report

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Reduction of Plastic

The mineral content in EarthCoating® displaces up to 51% of the plastic by weight that would otherwise be found in a traditional plastic (polyolefin) coating. 

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Energy Use Savings

Energy savings are realized whenever paperboards are recycled. Paper tonnage which might otherwise be buried in US landfills may be collected and reused, resulting in reduced greenhouse gas emissions and energy savings.

For example, every ton of paper recycled can save the energy equivalent of 165 Gallons of gasoline. If the approximately 58 billion paper cups that are buried in US landfills each year were to be recycled, approximately 700,000 tons of paper would be recovered – resulting in energy savings equivalent to removing almost a quarter million cars from our roads.

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Source Reduction Enabled by Superior Performance

When switching from traditional plastic coating to EarthCoating®, an immediate 40-51% plastic reduction becomes realized and additional source reduction may be achieved due to potential lower coat weights, leveraging the superior barrier performance of a mineralized resin coating.


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Superior Moisture Barrier

The minerals in EarthCoating® produce a tortuous path for moisture to pass through, resulting in better moisture vapor transmission rates (MVTR).  Ask about our MVTR report.

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Superior Heat Seal Performance

Mineralized resins absorb and dispel heat differently than neat polyolefins, resulting in better heat seal performance and fiber tear.

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High Quality Print Surface

Unlike traditional polyethylene, EarthCoating® offers a high surface energy complete with a typical post-corona dyne level of 46, providing an excellent print surface for high quality graphics using digital, offset, flexo and rotogravure printing techniques.


Enhanced Adhesion Surface

The high surface energy of EarthCoating® provides enhanced adhesion capabilities.


Post-consumer closed-loop collection

Unlike traditional plastic-coated packaging materials, paper cups and other paper-based barrier packaging produced with EarthCoating® are valuable to collect and easy to pulp into recycled paper using conventional recycling equipment. As a result, closed-loop collection programs have been set up in select cities around the world to collect post-consumer EarthCoating® materials and the economics are favorable.

To learn more about the work we're doing in this area, visit our News section where you can read about our latest projects. For those interested in setting up a closed-loop collection program, contact us.


Post-Industrial Trimmings Rebate

Paper-based packaging applications coated with EarthCoating® are engineered for repulping through existing paper recycling streams, providing premium high value fibers without plastic contamination nor a laborious depolymerization process found in the effort to process traditional paperboards with 100% polyolefin coatings.  As a result, industrial EarthCoating® trimmings are sought after at a premium value by recyclers, resulting in a potential rebate for supply chain vendors.


Material Cost Savings

The use of low cost minerals in the resin blend, offsetting traditional 100% plastic resins, may be used to create material cost savings compared to neat polyolefin or bio-resin coatings.

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Source Reduction Enabled by Superior Performance Yields Cost Savings

Compared to traditional plastic coatings, EarthCoating® provides superior barrier performance, which often results in an opportunity to down gauge coat weights, leading to source reduction and potential cost savings.


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         Calcium Carbonate                                                       POLYETHYLENE                                                                

Calcium Carbonate is blended into polyolefin resin, creating a compound called EarthCoating®, which may be extrusion coated onto various papers and paperboards at high commercial line speeds using conventional extrusion coating equipment without any additional capital investment.

EarthCoating® compounds include:

EC-40: 40% Calcium Carbonate / 60% LDPE - ideal for coffee cups, folding cartons, food trays, etc.

EC-51: 51% Calcium Carbonate / 49% LDPE - ideal for coffee cups, folding cartons, food trays, etc.

EC-PP: 40% Calcium Carbonate / 60% Polypropylene - ideal for microwave conditions

EC-Hyper: Custom blend of HDPE, LDPE & Calcium Carbonate

EC-COEX-EU: 43% Calcium Carbonate / 57% LDPE - ideal for coffee cups, folding cartons, food trays, etc. to be used throughout Europe.

EC-WHITE: Various blends of pigmented EarthCoating® are available upon request. To learn more about this option, contact us.


*To learn how custom EarthCoating® compounds may be used in support of your specific criteria, contact Smart Planet Technologies


EarthCoating is a highly mineralized resin technology that may be used as an alternative to traditional plastic coatings for a variety of paper based packaging applications across several market segments. 

What applications can EarthCoating® be used for?

Ideal packaging applications for EarthCoating® include hot cups, cold cups, folding cartons, food trays, liners, labels, corrugated packaging, flexible bags, etc. For more information, visit our Applications page.

Where is EarthCoating® available?

EarthCoating® is available through licensees and approved suppliers throughout the world. To learn more, visit our Preferred Vendors page or contact Todd Gasparik at 949-610-7063 or

Is EarthCoating® FDA compliant for direct food contact?

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

Is EarthCoating® CONEG compliant?

Yes, EarthCoating® is CONEG compliant. (a copy of the CONEG compliance is available upon request)

Is there an MSDS sheet for EarthCoating®?

Yes, an EarthCoating® MSDS form is available upon request.

Is EarthCoating® repulpable?

Yes, paperboard packaging applications using EarthCoating® are engineered to be pulped into recycled paper using conventional paper recycling equipment. Unlike traditional polyethylene coating which breaks into large, light flakes that clog the screens during the pulping process, EarthCoating® breaks down into small dense particles that sink to the bottom of the pulper, leaving the fibers to move forward in the recycling process. Any remaining EarthCoating® particles that get caught in the fibers are small and soft enough to pass through the screens on to the secondary cleaning phase where they get captured. To learn more, download our repulping report.

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. To learn more, please contact Todd Gasparik at 949-610-7063 or to discuss the specific details of your project.

Is EarthCoating® compostable?

Smart Planet Technologies believes that paper-based barrier packaging should be recycled whenever possible. However, we do also offer a variety of custom mineralized blends designed to meet specific criteria such as compostability for those interested. To learn more about our compostable barrier coating options, contact Todd Gasparik at 949-610-7063 or

Is EarthCoating® ok to use in the microwave?

Smart Planet Technologies offers a specific mineralized polypropylene blend designed to handle microwave conditions.

Does EarthCoating® heat seal?

Yes, when compared to 100% LDPE, EarthCoating® provides enhanced heat seal capabilities which may be run at standard high line speeds. (3rd party heat seal testing results are available upon request)

Does EarthCoating® provide barrier performance?

When compared to 100% LDPE, EarthCoating® 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.)

Do paper cups made with EarthCoating® pass 3rd party repulping tests?

Yes, paper cups made with EarthCoating® have successfully passed PTS, Der Grune Punkt and other 3rd party repulping tests. To learn more, download our Repulability Report.

How much does EarthCoating® cost?

When compared to conventional Polyethylene coating, EarthCoating® is very competitive and offers significant environmental and performance benefits. When compared to bio-resin coatings such as PLA or other bio-derived extrusion coatings, EarthCoating® provides material cost savings. To learn more, please contact Todd Gasparik at 949-610-7063 or

Why hasn't my packaging company or paper mill told me about EarthCoating® technology?

While some vendors may simply not be aware of EarthCoating®, we’ve successfully commercialized millions of packages using EarthCoating® technology and are happy to bring your incumbent suppliers up to speed on all of the benefits associated with using EarthCoating®. To learn about our recent EarthCoating® developments, visit our Press web page.

Also, despite all of the environmental, performance and economic benefits, innovative technology such as EarthCoating® is often referred to as disruptive and may be seen as an opportunity or threat depending on who you are talking to. For example, if your incumbent supplier is currently selling you packaging made of polyethylene-coated paperboard, they may want to keep things as they are for fear that if they introduce something new, they may be increasing their risk of losing your business. At the same time, new vendors trying to earn your business may see EarthCoating® as an opportunity and use it as a way to generate your interest. Either way, EarthCoating® is worthy of serious consideration in support of your sustainable packaging initiatives. To learn more, contact Todd Gasparik at 949-610-7063 or

Will my packaging actually get recycled if we use EarthCoating®?

EarthCoating® is not a silver bullet for getting your packaging recycled. Unfortunately, many municipalities, states, and countries have different rules and regulations which need to be followed based on the geographic location of where the packaging is being used.

The first step to getting paper-based barrier packaging recycled is to produce materials that are valuable and easy for paper recyclers to process through their conventional paper recycling equipment. Now that we've developed EarthCoating® which addresses these issues, it's a matter of increasing usage and educating recyclers.

In an effort to get started, we've put together closed-loop collection programs which are now recycling post-consumer paper cups and other packaging made with EarthCoating®. To learn more, visit our News section.

To learn more about how your packaging made with EarthCoating® can be recycled, contact Smart Planet Technologies.