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Note: Minimum order value $ 1,856.00
Note: Minimum order value $ 1,856.00

Hull anodes for ships and boats - Zinc, Aluminum and Magnesium

Hull anodes

Protect your boat from corrosion with hull anodes. In our range you will find Zinc anodes, Magensium anodes and Aluminium anodes to give your hull a optimal protection.

Why use hull anodes for cathodic protection?

The primary purpose of hull anodes is to protect your hull from corrosion, making the maintenance of your boat easier. So how does this work? Let us take you through it all. 

When metals get under water (for example your hull), a corrosion process starts (the rusting process), simply explained it means that the metal tries to return to its origin in a raw form. In the process of making the metal, a lot of energy is added, energy that then wants to be released. The only way for the metal to release all the energy added is by corroding, which then becomes the cause of your hull rusting.

This means that your hull will eventually be consumed. This can be avoided by using hull anodes, also known as sacrificial anodes.

Sacrificial anodes

A sacrificial anode is a piece of alloyed metal that is attached to a metal surface, such as a boat hull. When the anode is attached to the hull by either screwing or welding, it gives off a protection that prevents your hull from corroding. The alloyed metal that the hull anode is made of, becomes the metal that will be consumed and will also take the damage, so that your boat hull stays intact. Protecting your hull with sacrificial anodes will therefore be a cost-effective solution that will save you from expensive maintenance and repair costs.


Which metal in which type of water?

Depending on the type of water your boat is in, the effectiveness of the metals is different. The different metals (sacrificial anodes) perform differently depending on the type of water they are placed in. Not sure which hull anode to use in which type of water? See our explanation below.

Salt water

For optimal protection on your hull that is in salt water, Aluminium anodes is the right choice for you.  


Freshwater

In fresh water however, we recommend Magnesium anodes for the best possible protection of your hull.


Brackish water

For brackish water which is a mixture between fresh and salt water, we recommend the use of our Aluminium anodes or Zinc anodes. This is because it is difficult to determine how salty or fresh the brackish water is without any water samples. Fell free to contact us if you have any doubts.

There are several important factors that must be considered before choosing the type of sacrificial anodes. For example, the size of what you want to protect, other parameters such as painting/coating is also important. Should you need help calculating the number of anodes to protect your hull from corrosion, you are always welcome to contact us with your question. Remember that an anode that has been consumed about 50% from its original appearance and weight should be replaced.

What should I do if my hull is made of a material other than steel?

As not all hulls are made of steel, there is of course a solution for them too. A rule of thumb is to always buy sacrificial anodes with the same insert as the material of the hull. For the sake of clarity, let us give an example:

For a boat with Aluminium hull that is located in salt water, the right product would be a Aluminium anode with Aluminium insert. The reason for this is that the insert is made of Aluminium, which allows the anode to be either screwed or welded to the hull. Aluminium is the substance that performs best in salt water, this is also why the anode in this case should be made of this substance.
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  • Original price $ 333.00
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    Zinc hull/rudder anode 1.10Lb.

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    Product specification Type 5 Zinc Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800391 Weight : 0.5 KG/1.10 lbs Reinforcement/Insert: ...

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    Zinc hull/rudder anode TYPE 2 - 3.85*1.33*1.18inch

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    Product specification Type 2 Zinc Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110020 Net weight : 0.21 KG/0.46 lbs Gross weight: 0.25 KG...

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    Zinc anode 5.9* 2.4 *0.99 (Holes: 0.43 * 0.6)inch, 2.204Lb

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    Product specification Zinc anode with bolt hole, type vetus Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800220 Weight : 1.0 KG/2.20462 l...

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    Zinc anode Fairline 12.59 * 2.55 * 1.37 (Hole 6.29inch) 5.29Lb

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    Product specification Zinc anode with longitudinal bolt hole, type fairline Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800270e Weight :...

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    Original price $ 1,632.00 - Original price $ 1,632.00
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    Zinc hull/rudder anode 2.204Lb.

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    Product specification Type 1.0 KG Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800392 Weight : 1.0 KG/2.20462 lbs Reinforc...

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    Original price $ 516.00
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    Zinc anode TYPE 20 - 6.5*3.5*1.2

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    Product specification Type 20 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110200 Net weight : 1.9 KG/4.19 lbs Gross weight: ...

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    Original price $ 1,094.00
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    Zinc hull/rudder anode 4.4Lb Corrosion Group, 5.82*3.34*1.18inch (8.85inch), hole 0.33*0.74inch

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    Product specification Type 2.0 KG Zinc Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800393 Net weight : 2.0 KG/4.41 lbs Reinforcement/...

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    Zinc hull/rudder anode 0.55Lb Corrosion Group, 3.07*1.14*0.74inch (6.49), hole 0.251*1.18inch

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    Product specification Type 2 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800390 Weight : 0.250 KG/0.55 lbs Reinforcement/...

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    Original price $ 190.00
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    Zinc anode Fairline 12.20*2.95*1.57 (Hole 8.07inch) 8.81Lb

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    Product specification Zinc anode with bolt hole, type fairline Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800271e Weight : 4.0 KG/8.82 ...

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    Zinc anode Fairline 7.87 * 2.55 * 1.25 (Hole 4.33inch) 2.86Lb

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    Product specification Zinc anode with longitudinal bolt hole, type fairline Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800269e Weight :...

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    Zinc anode TYPE 5 - 4.72*1.81*0.90inch

    In stock

    Product specification Type 5 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110050 Net weight : 0.44 KG/0.97 lbs Gross weight: ...

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    Zinc hull anode Type 35 - 220 * 96 * 30

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    Product specification Type 35 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110350 Net weight : 3.2 KG/7.05 lbs Gross weight: ...

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    Zinc anode Type 10 Alu insert - 140 * 62 * 28

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    Product specification Type 10 Zinc anode with Aluminum reinforcement Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110105 Weight : 1.0 KG/...

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  • Original price $ 535.00
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    Zinc anode TYPE 10 - 5.51*2.44*1.10inch

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    Product specification Type 10 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110100 Weight : 1.0 KG/2.20462 lbs Reinforcemen...

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    Zinc anode Fairline 17.91 * 3.54 * 1.57 (Ø18 * 37, C-C 9.05inch) 15.43Lb

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    Product specification Zinc anode with longitudinal bolt hole, type fairline Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: R800272e Weight :...

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    Zinc anode Kamewa Block, 173 * 87 * 23mm, C-C80mm 10108230

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    Fits: Kamewa Jet FF375S; FF550; A40 Series Orginalkod: 10108230 Kod kg lbs   l in h yes BOTANY Ø1 R802454 2.08 4.59 mm inch 173 6.81 87...

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    Current price $ 1,038.00

    Zinc hull anode Type 35 Alu insert - 220 * 96 * 30

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    Product specification Type 35 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110350 Net weight : 3.2 KG/7.05 lbs Gross weight: ...

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    Zinc anode 7.93Lb

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    Divers Dream Anode USA plate 305X152X13 HC140 MISCELLANEOUS Suitable for: Various anode Original code: R804DIVER Weight : 3.6KG/7.72LB Material: Z...

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    Zinc hull/rudder anode Type 2 Alu insert - 3.85 * 1.33 * 0.51inch

    In stock

    Product specification Type 2 Zinc Alu reinforcement  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110025 Net weight : 0.21 KG/0.46 lbs Gr...

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    Current price $ 917.00
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    Zinkanod VETUS 15, B116150

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    Zinkanod VETUS 15, 150*60*25mm, Håldistans: 80mm/3.15in Passar till: Orginalkoder: Vetus 15 Vikt: 1.0KG/2.2lb Material: Zink Båttyp/specifikt...

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    Zinc anode Type 55, hull, 12lb, B110550

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    Product specification Type 55 zinc anode  Material: Zinc Alloy: MIL-DTL-18001L-ZN Article: B110550 Net weight: 5.1KG/11lb Gross weight: 5,5KG/12l...

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  • Original price $ 537.00
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    Zinc anode TYPE 5 Alu insert - 4.72*1.81*0.90inch

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    Product specification Type 5 Zinc anode  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110055 Net weight : 0.44 KG/0.97 lbs Gross weight: ...

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  • Original price $ 1,057.00
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    Current price $ 754.00
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    Zinc hull anode Type 20 Alu insert - 6.5 * 3.5* 1.2

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    Product specification Type 20 Zinc anode Aluminum reinforcement  Material: Zinc Alloy : MIL-DTL-18001L - Zn Article: B110200 Net weight : 1.9 KG/...

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  • Original price $ 3,078.00
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    Zinkanod NoCor© Zn Marine Grade, 105 - 405 x 220 x 35 mm/15.94 x 8.66 x 1.38 inches

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    Product Specification Type 105 Zinc Material: Zinc Alloy: MIL-DTL-18001L - Zn Item: B111050 Weight: 10.5 Kg / 23.15 lb Total Length: 445 mm / 17....

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