EarthCorr Packaging

EarthCorr Foam Compostability Report

EarthCorr Foam was evaluated by independent laboratories for compostability by exposing it to contact with composting material for nine weeks. Each sample container included 10% by weight of each sample type of which 9% was ground material and 1% was solid material. Two (2) replicates per sample were tested. Composting, material was purchased from Monterey Mushrooms Inc in Princeton, IL. The composting material had a Carbon:Nitrogen ratio of 14:1 which was within the specifications for this test. The pH of the compost material was 7.3 with a total dry solids percentage of 50% when dried at 105 C until constant weight was achieved and was within the limits of 5Q%-55%. The volatile solids had a dry matter content of 28% which was under the 70% allowed.

The compost material in each flask was stirred weekly and deionized water added when needed to keep the compost material moist. Percent ash content of each sample is listed in Table I. Figure I represents the average weight loss percentage of each material. Also, refer to Figure 1 for average weight losses of each material.

Sample A, the control cellulose, had 100.00% compost disintegration. None of the sample could be found in the composting material over the 9 week exposure period.

Sample B, the EarthCorr Foam material, had 96.7% compost disintegration. Nearly all of the sample had degraded in the composting material over the 9 week exposure period and only a minute amount could be found.

Sample C, the adhesive used in EarthCorr Foam packaging, had 98.7% compost disintegration. Nearly all of the sample had degraded in the composting material over the 9 week exposure period.

EarthCorr foam and adhesive materials are provien disintegradable after the 9 week exposure period.