MG Duff AD56 Disc Rudder Anode - Aluminium

MG Duff disc Anodes are a popular choice for protecting various underwater components on boats and vessels from corrosion.

These disc-shaped anodes are typically made of high-quality materials like zinc, aluminium, or magnesium, each with its own specific advantages in different marine environments.

Anodes protect the various metal components ( propeller, shaft, keel, rudder, engine) from deterioration caused by galvanic corrosion when your boat’s hull is submerged.

Galvanic corrosion is the deterioration of metal, which occurs when dissimilar 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.

Anode deterioration must be monitored carefully and replaced every year when doing the antifouling/launching or when the anode is 75% dissolved.

The choice of anode depends of the nature of the water:

• Saltwater: Zinc Anodes or Aluminium Anodes
• Freshwater: Magnesium Anodes
• Brackish Water: Aluminium Anodes