Should Copper-Based Antimicrobial Preservatives Be Approved for Paints and Coatings?

Official title: Consultation on Copper (present as cupric oxide) and Corning Guardiant Antimicrobial Particles, Proposed Registration Decision PRD2024-08

Closed Regulations & Permits Environment & Climate Health & Safety
Health Canada is deciding whether to approve two copper-based products that kill bacteria and yeast in paints and coatings. These preservatives would be added to products like paint to prevent spoilage in the can and mold growth on painted surfaces. The consultation has now closed.

Why This Matters

Ever opened an old can of paint and found it spoiled or moldy? These preservatives could make paints last longer on the shelf and resist mold after application. If you're concerned about chemicals in household products, this decision affects what goes into paints you might use at home.

What Could Change

If approved, manufacturers could add copper oxide to paints and coatings sold in Canada. Products would need to meet Health Canada's safety requirements. The final registration decision will be published on Canada.ca.

Key Issues

  • Should copper oxide be registered as a preservative for paints and coatings?
  • Are the proposed products safe for use against bacteria and yeast?

How to Participate

  1. Review the Consultation Summary document to understand the proposed registration.