- The Government of Canada conducted a science-based evaluation, called a screening assessment, of the Epoxy Resins Group to address the potential for harm to Canadians and to the environment.
- Under the Canadian Environmental Protection Act, 1999 (CEPA 1999), the risk posed by a substance is determined by considering both its hazardous properties (its potential to cause adverse human health or ecological effects) and the amount of exposure there is to people or the environment. A substance may have hazardous properties; however, the risk to human health or to the environment may be low depending upon the level of exposure.
- Substances in the Epoxy Resins Group may be associated with human health and/or ecological effects of concern; however, exposure to Canadians and the environment from these substances is low. Therefore, it is proposed that these 4 substances are not harmful to human health or to the environment.
About these substances
- This screening assessment focuses on 4 substances. Three of them are Diglycidyl Ether of Bisphenol A (DGEBA) epoxy resins (CAS RNs 25036-25-3; 25068-38-6 and 25085-99-8) and 1 is a Novolac epoxy resin (CAS RN 28064-14-4). They are referred to collectively as the Epoxy Resins Group.
- These substances were previously prioritized based on hazard and exposure under the Second Phase of Polymer Rapid Screening and were identified as requiring further assessment due to potential human health and/or ecological risks.
- The substances in the Epoxy Resins Group do not occur naturally in the environment.
- The Government gathers information on substances, including details on their commercial status in Canada, to support risk assessment and risk management of substances under the CMP.
- In Canada, these substances are used in paints/coatings and plating agents, as intermediates in the manufacture of other products, in adhesives and sealants in grout, flooring, plastics and concrete, and in lubricants and lubricants additives.
- These substances are also used in the petroleum production process to prevent corrosion and build-up.
- In addition, all 4 epoxy resins have been identified as components used in the manufacture of some food packaging materials.