Anodes & Corrosion Protection

Corrosion is one of the most significant and costly threats to marine vessels, underwater structures, and onboard metal components. In the marine environment, dissimilar metals in contact with seawater create galvanic cells that accelerate corrosion of the less noble metal. Sacrificial anodes provide a proven, cost-effective defence by introducing a metal that is more electrochemically active than the components being protected — the anode corrodes preferentially, sparing hull fittings, shafts, propellers, heat exchangers, and engine internals from damage.

Luxfords supplies a comprehensive range of sacrificial anodes and cathodic protection products from Cathodic Anodes Australasia, a leading Australian manufacturer. The range includes hull anodes (bolt-on and weld-on), shaft and propeller anodes, engine and heat exchanger pencil anodes, trim tab anodes, and anodes for specific equipment such as bow thrusters and stern gear. Anodes are available in zinc, aluminium, and magnesium compositions to suit saltwater, brackish water, and freshwater environments respectively. Cathodic Anodes Australasia products are manufactured to strict quality standards, ensuring consistent alloy composition and reliable electrochemical performance.

Correct anode selection involves choosing the right alloy for the operating environment, sizing the anode appropriately for the protected surface area, and positioning anodes correctly on the vessel. Luxfords can advise on anode type, quantity, and placement for any vessel from a small trailer boat to a large commercial craft. The Luxfords team also provides guidance on replacement schedules, helps diagnose unusual corrosion problems, and can recommend additional measures such as galvanic isolators and bonding systems where needed.