What type of antifouling should I use on aluminium?

Antifouling paint used for aluminium should not contain cuprous oxide biocide as the high copper content can lead to corrosion problems unless the hull is expertly painted and protected using sophisticated impressed current protection systems.

Antifouling formulated using cuprous thiocyanate are better used as this material is more compatible with aluminium. However it is crucial to apply the correct primers at the correct film build thickness to provide a barrier between the antifouling and the aluminium surface.

An advantage of products formulated using cuprous thiocyanate is the ability to produce bright clean colours including clean whites.