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.

Aluminium Bolt On Hull AnodesAluminium Bolt On Hull Anodes

Aluminium Bolt On Hull Anodes

Sacrificial hull anodes are specifically used to protect the hull of your boat from corrosion by reacting to electrolysis and corroding themselves, instead of your hull - hence the term 'sacrificial'.

Aluminium anodes have three times higher high nominal electrical capacity than a zinc bolt on hull anode of the same mass. This means that you require significantly less aluminium anodes than you would zinc anodes, making it easier to manage their underwater installation or subsequent replacement.

Unlike aluminium weld on anodes, aluminium bolt-on anodes do not require specialist tools to secure them to your hull, although it is highly recommended that you use the best-quality anode fixing bolts when bolting on hull anodes.

Why shop with Anode Outlet?

Since 2009 we've been supplying a leading range of hull anodes for boats, including aluminium hull anodes, magnesium hull anodes and zinc hull anodes. All our boat anodes are hand-chosen by our highly experienced team, who are here to help if you have any queries, or need help identifying a missing anode! Contact us by calling 01634 568011 or email info@anodeoutlet.co.uk, and we'll help solve your query as efficiently as possible.

We ship all our orders out on a fully tracked next working day service (subject to stock availability) - but if your order is urgent, please contact us beforehand to confirm stock availability and lead times.