Nautical anodes for Fonp boat shafts and propellers

FONP shaft and propeller anodes are designed to effectively protect these vital vessel parts from galvanic corrosion , a common problem in the marine environment that can seriously damage underwater metal components.

Why choose FONP anodes for shafts and propellers?

1. High quality materials
   FONP anodes are made with tested and certified materials to offer maximum protection based on the type of water:

   • Zinc : For salt water (sea).
   • Aluminum : For brackish water (mixed).
   • Magnesium : For fresh water (lakes, rivers).

2. Reliable protection
   Anodes wear out before the shafts and propellers , preserving their integrity and prolonging their useful life.

   • They protect against galvanic corrosion caused by electrolytic currents.
   • They avoid costly repairs or replacements of submerged components.

3. Optimized design
   FONP anodes for shafts and propellers are designed for:

   • Easy assembly on boards of various sizes.
   • Secure fit to prevent vibration or leakage.
   • Uniform protection thanks to the specific shape (collars, semi-circular or with mounting holes).

4. Wide compatibility
   Available in various sizes and shapes to suit:

   • Propeller shafts of sailing or motor boats.
   • Propellers for inboard, outboard and saildrive engines.

5. Long lasting
   The quality of FONP materials guarantees gradual and uniform corrosion of the anode, prolonging protection over time.

Types of FONP anodes for shafts and propellers

1. Collar anodes for axles

   • They are fixed directly onto the propeller shaft.
   • Available in various diameters to suit different axle sizes (from 20mm to 100mm and beyond).
   • Continuous protection without interfering with the rotation of the axis.

2. Propeller anodes

   • Specifically designed for mounting on the base or propeller hub.
   • Designed to minimize hydrodynamic resistance.
   • Available in various shapes: semicircular, with bolts or central holes.

3. Anodes for support foot

   • Ideal for protecting supports and structures close to the axes.

How do FONP anodes for shafts and propellers work?

• In water, an electrolytic current flow is created between the metals of the vessel (steel, bronze, aluminum) and the marine environment.
• FONP sacrificial anodes wear out faster than other, more noble metals, protecting components such as shafts and propellers from corrosion.

When to replace anodes?

• Anodes should be checked regularly (e.g. during seasonal maintenance) and replaced when worn beyond 50% .
• The lifespan of the anodes depends on the type of water and the use of the vessel.

Advantages of FONP anodes for shafts and propellers

✅ Effective protection against galvanic corrosion.
✅ Certified materials (zinc, aluminum, magnesium).
✅ Suitable for all boats and water types.
✅ Simple and safe installation .
✅ Reduced long-term maintenance costs.