What is Anti-fouling paint?

Antifouling paint – a category of commercially available underwater paints (also called bottom paints) – is a specialized category of coatings applied as an outer (outer) layer on the hull of a ship or boat , to slow growth or facilitate the detachment of underwater organisms that attach to the hull and may affect the performance and durability of the vessel. 

Antifouling paints are often applied as components of multilayer coating systems, which may have other functions than their antifouling properties, such as acting as a barrier against corrosion of metal shells that will degrade and weaken the metal, or by improving the flow of water beyond the hull of a fishing vessel or high performance yachts. Such type of multilayer coating system is very helpful and need to be done by some professionals. So in that case, if you are looking for professional boat painting services, you can contact via www.anzyacht.com/yacht- painting- services/.

Image Source – Google

In modern times, antifouling paints are formulated with cuprous oxide and other biocides, special chemicals that prevent the growth of barnacles, algae and marine organisms . Historically, copper paintings were red, leading to the bottom of ships still painted red today. 

The "soft" or ablative background slowly paints in water, releasing a copper or zinc-based biocide into the water column. The movement of the water increases the rate of this action. Ablative paints are widely used on recreational boat hulls, which are reapplied every 1 to 3 years.

In the 1960s and 1970s, merchant vessels commonly used bottom paints containing tributyltin, prohibited by the International Convention on the Control of Harmful Anti-fouling Systems on Ships of the International Maritime Organization because of its severe toxic effects marine life.