Zinc Anodes
Zincs for boats protective properties result from a strongly negative reduction potential, which is more negative than the boat metal it is protecting. Oxidants, which corrode metals, will oxidize the zinc rather than the protected metal structure, thus preventing the boat from being corroded. Zinc make a great choice for a sacrificial anode because it's a highly active metal that is capable of being sacrificed. Zinc anodes are recommended for salt water applications.
