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You are here: Chandlery > Hull Maintenance > Anodes for Boats > MG Duff Aluminium Shaft Anode

MG Duff Aluminium Shaft Anode

TypeShaft DiameterWeightAvailability Normal Price Online Price  
MG Duff Aluminum22mm0.6kg1 only£27.10£13.55


The MG Duff 22mm aluminium shaft anodes come with bolts included. Unlike traditional anodes, the new design incorporates a mild steel core bar which controls anode wastage and prevents it shaking free.

When your boats hull is immersed in water, anodes protect the various metal components (propellor shaft, keel, rudder, engine) from the deterioration caused by galvanic corrosion. Galvanic corrosion (also called electrolyte) is the detioration of metal metal which occurs when dissimlar metals are joined together by a conductor in an electrically conductive fluid. The least noble metal (the anode) dissolves while the most noble metal (the cathode) remains protected.

The choice of the anode composition is also very important to the nature of the water: Salt water: zinc anode (stocked) Fresh water: magnesium anode Brackish (mixture os salt and fresh) water: aluminium anode

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