The Different Types Of Antifoul Explained
Self Polishing/Controlled Solubility
Great antifoul for cruising boats in a wide variety of conditions. The active ingredient is biocide which is released gradually over time leaving the surface of the hull smooth. It is a mix between copper and polymer, giving it the name copolymer, a bit of a tongue twister! The resin based mix consists of tiny particles, as they lift off the surface of the hull, they dislodge whatever is attached to them.
All Kinds For All Purposes

Ablatives
Relying more on the movement of water by the hull.
<<>> The Abrasion of the water at high speeds means that algae and others don't attach. Better for speed boats and power craft than sailboats.
Hard
Preferred by racers. 'Contact Leaching' is the name of the process. Biocide is released in layers on contact with water. As the particles in question are measured in microns the coating is dependable. You can scrub the hull with out damaging the shielding qualities. Other advantages are that if your mooring is tidal and the hull is out of the water, this won't impede the protection.
Looking For Something Specific? Type Your Search Below
Antifouling Boot Tops
<<>>Mostly clear hard coatings, which allow scrubbing. they stop slime growing on the hull. Designed to be applied over existing protection - but not recommended due to build up over time.
Propellers
Electrolysis is avoided by applying Cuprous Thiocyanate to the prop. There is an argument saying that it's not necessary to proof the prop. The problem arises as barnacles particularly enjoy attaching around propellers. It's normally dark, which they like.
Long Life Copper Rich
This is epoxy resin which is put directly on to the gelcoat. Very hard wearing up to ten years. The set back is it need to be applied by professionals.
Traditional
Contains biocide, that is released in fits and starts due to the lack of copolymer. This is unreliable and used mainly by fishing fleets.
Non Toxic
Best used in boats that are used frequently. Provides a slippery surface on the hull which foul find difficult to attach themselves to. This is the ethical version, which is not as effective as the rest.
Final word
Make sure the paint is still legal. Some additives are banned, others will be banned soon. Which might prove problematic, particularly when sailing overseas - no pun intended!
Find Out The Future Of Bottom Paints
Go from antifoul to bottom painting
Go from antifoul to boatpride home

|