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.

How To Fit Shaft AnodesHow To Fit Shaft Anodes

Magnesium Shaft Anodes For Boats

The shaft is a vital part of your vessel as it connects your boat's engine to the propeller. As the shaft is underwater, it's prone to galvanic corrosion, which is why you'll need a shaft anode to keep it protected. If you sail in fresh water, you'll need a Magnesium shaft anode, as there is lower open circuit potential in fresh water. In addition, unlike zinc shaft anodes and aluminium shaft anodes, magnesium anodes react rapidly when exposed to seawater, which is why they should only be used in fresh water. 

Our leading range of magnesium shaft anodes include magnesium shaft collar anodes, which work in the same way as a regular shaft anode, but are typically located near the propeller of your vessel. If you are specifically looking for a shaft collar anode, we also sell them in zinc and aluminium

Why shop with Anode Outlet?

Since 2009 we've been supplying a leading range of magnesium shaft anodes, aluminium shaft anodes and, of course, zinc shaft anodes. All the anodes we sell are manufactured to US MIL spec standards, ensuring the anodes you put on your boat are of the finest quality and provide maximum protection against galvanic corrosion.

If you have any questions about our leading range of anodes, or have a mystery anode you'd like us to identify, contact us today by calling 01634 568011 or emailing info@anodeoutlet.co.uk. We pride ourselves on our customer service, and aim to make it as easy as possible for you to find the right anodes for your requirements.

All our orders are shipped out on a fully tracked, next working day service - although if your order is urgent, please call us on 01634 568011 to confirm stock availability.