WASHINGTON - The issue of biocide marine antifouling coatings has become the top environmental regulatory issue for that segment of the industry. With the worldwide ban of tributyltin or TBT as a biocide, the industry has looked to copper as a substitute. Now this, too, is coming under pressure, with clean-water authorities in the United States and Europe pushing the industry to develop biocide-free antifouling coatings, such as biocide-free foul-release coatings to which foulants cannot adhere.
The NPCA, Washington, has formed an Antifouling Coatings Work Group to address this matter domestically. Additionally, an Antifouling Work Group has been established under the Marine Coatings Product Oriented Group, which operates under the auspices of the International Paint and Printing Ink Council (IPPIC).