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Magnesium the ideal anode material for boats that operate entirely in freshwater. Magnesium anodes have a higher oxidation potential than zinc or aluminum anodes, making them particularly well-suited to the less concentrated electrolyte of freshwater environments.
• Does not build up oxide layer in freshwater like zinc or aluminum
• Not for use in salt or brackish water - except for rare, brief exposures up to a total of 14 days per year