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When placing an order, it's crucial to specify the material of your boat's hull. All metal parts must have direct contact with the anode for effective protection. Therefore, bolts supplied for fiberglass hulls, for example, should be connected by a wire to ensure contact with metal parts. Only metal parts should be protected on fiberglass and wooden boats. Additionally, all Vetus anodes feature a protective paint layer on the mounting side to prevent damage to the hull's paint.
Aluminum anodes are recommended for vessels primarily used in fresh waters because aluminum has a lower electrochemical potential than zinc. This is particularly important as fresh water has higher electrical resistance compared to saltwater. For boats in saltwater or slightly salty conditions, we recommend using zinc anodes. While aluminum anodes can also perform well in saltwater, they are consumed more rapidly. It's worth noting that magnesium anodes are not recommended due to their even lower electrochemical potential compared to aluminum, which can potentially damage the boat's coating.
Vetus aluminum anode count table for yachts and boats:
№ Anode Weight
Well Painted Surface
Old paint
Unpainted Surface
1 0,45 kg 14 m2 7 m2 3,5 m2 2 1,1 kg 24 m2 12 m2 6,5 m2 3 2,2 kg 40 m2 20 m2 10,5 m2 The Yacht Products company will help you to calculate and choose the anode scheme for your yacht or boat. Please, address our phone numbers managers or through a feedback form
Articles according to the Vetus catalog: ALU15C, ALU15SC, ALU25C, ALU25SC, ALU35C -