Specialists in Sacrificial
Anodes for Shipping
and Offshore Industries

Zinc anodes (Zincoline) are cast in current U.S. Military Specification (Mil-Spec) and Special High Grade high purity alloys. Zincoline anodes are the ideal corrosion protection solution where the use of aluminum anodes is restricted, as in the upper areas of tanks.

What is a sacrificial anode?

A sacrificial anode, or sacrificial rod, is a metallic anode used in cathodic protection where it dissolves to protect other metallic components.

A sacrificial anode it is a piece of more readily-corrodible metal attached by a conductive solid to a less readily-corrodible metal, with both metals immersed in a conductive liquid, typically fresh or salt water.

The more active metal corrodes first and generally must oxidize nearly completely (hence the term "sacrificial") before the less active metal will corrode, thus acting as a barrier against corrosion for the protected metal.

Electrons are stripped from the anode and conducted to the protected metal, which becomes the cathode. The cathode is protected from corroding because reduction rather than oxidation takes place on its surface.

Learn more about Wilson Walton

View the Wilson Walton online anode catalog or contact us for more information or to place an order.