What is the purpose of ablative antifouling paints?

The primary purpose of ablative antifouling paints is to release biocides over time, which prevents the growth of marine organisms like algae, barnacles, and mussels on submerged surfaces. These paints work by gradually wearing away or "ablating" in the water, allowing for a continuous release of active components that deter fouling.

While some antifouling coatings may provide a slick surface, the main function of ablative paints is to ensure that the biocides are constantly available in the water to combat fouling as the paint wears off. This method is effective in maintaining the performance and longevity of vessels in marine environments. Therefore, releasing biocides is a key feature of their functionality.