Zinc anode is a kind of zinc component used to help galvanized
steel and other objects. It is often used to prevent corrosion and
help other materials corrode more slowly and last longer. The
sacrificial zinc anode is also a part of a large system which gives
objects corrosion resistant abilities. They are common among
metallic marine applications, such as boats with metal hulls and
metal crab pots. Saltwater is very corrosive and will quickly rust
the metal, unless the galvanic coupling (voltaic couple) is formed
with the sacrificial zinc anode, which can greatly increasing its
useful life in the water. With high capacity, current
efficiency and high machine performance, sacrificial zinc anodes
are widely used in cathodic protection of tank bottom, pipeline,
and water pipe in soil environments.