Metal Guide

Al
Suitable for salt & fresh water
Mg
Suitable for fresh water
Zn
Suitable for salt water

Follow our colour coding for easy identification of metals.

Zinc Anodes

Zinc anodes are used to protect metal objects, such as boats, from corrosion by sacrificing itself through a process called galvanic corrosion. The zinc anode, which is made of a zinc alloy, is connected to the metal object and acts as a "sacrificial anode" by corroding preferentially to the metal object it is protecting. This helps to protect the metal object from rust and other forms of corrosion.

Zinc anodes are commonly used on boat hulls, rudders and propeller shafts in seawater, as well as lakes and rivers. Zinc anodes are heavier than aluminium anodes, although zinc anodes tend to corrode more evenly and completely than aluminium anodes, which erode unevenly with visible craters. In addition, zinc is a far less reactive metal than magnesium, which is why magnesium anodes cannot be used in the same (salt) waters that zinc anodes can.

Why shop with Anode Outlet?

Since 2009 we've been supplying a leading range of zinc anodes for boats including zinc engine anodes, zinc saildrive anodes and zinc sterndrive anodes.

Our highly experienced team have extensive marine backgrounds and love sharing their expertise, so if you have any questions about any of our anodes for sale, do not hesitate to contact us by calling 01634 568011 or emailing info@anodeoutlet.co.uk.

All our orders are shipped out on a fully tracked, next working day service with one hour timeslot - although if your order is urgent please get in touch to confirm lead times.