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They know this; that's why zinc sacrificial anodes are used. See: http://en.wikipedia.org/wiki/Cathodic_protection http://en.wikipedia.org/wiki/Cathodic_protect
by gmaslov 13y ago
They know this; that's why zinc sacrificial anodes are used. See: http://en.wikipedia.org/wiki/Cathodic_protection http://en.wikipedia.org/wiki/Cathodic_protection
- moocowduckquack 13y agoIf your boat is only aluminium you don't really need the anode. it is only when in contact with other metals that aluminium has serious problems in sea water, as it becomes the sacrificial anode to your steel or brass, so you need zinc then as it has an even lower potential.