This letter is in response to [“Newcomer to make biodegradable PET bottles,” Page 13, this issue, referring to] certain claims made by Casey Container Corp. (“Casey”) regarding oxo-biodegradable additives. Casey's Securities and Exchange Commission filing boldly proclaims, without the use of supporting documentation or footnotes, “It is believed that oxo-degradables do not actually biodegrade, but break down into tiny toxic pieces of plastic mixing into soil and waterways.” Casey also falsely claims, again without any supporting documentation, that oxo-biodegradable products have two- to six-month shelf lives and are affected by water.
Casey's so-called “beliefs” ... have been proven false time and again. Substantiation for the technical performance of products containing EPI Environmental Products Inc.'s oxo-biodegradable additives are clearly posted on EPI's Web site, www.epi-glob al.com. Additional information about EPI's products has been provided to your publication from time to time, including letters from esteemed scientists and university professors.
Furthermore, we question the validity of Casey's environmental claims, and those of its [EcoPure material] supplier, [Bio-Tec Environmental LLC]. Casey and [Bio-Tec] support their claims of biodegradability by citing ASTM D5511, a test method relevant only to “bioreactor” landfills and a standard which does not provide any specific pass/fail criteria to determine a rating of biodegradability. Indeed, EcoPure test reports posted on the Internet clearly note that “temperature and moisture are optimized as in a bioreactor. In a standard landfill these parameters are not optimized so biodegradation would not be as accelerated,” (see www.polimernet.com/docs/ ASTM%20D5511EVA(Ornek).pdf).
Therefore, Casey's/EcoPure's test method is not relevant to conventional landfills, and are relevant only to bioreactor landfills. Bioreactor landfills are a novel technology still in the development phase, and to our knowledge less than 20 such reactors are currently operating in the United States. Thus, virtually none of Casey's products will end up in Bioreactors. Similarly, we question Casey's/EcoPure's support for their composting claims, which appear completely unsubstantiated.
Vancouver, British Columbia