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 389.00 krOriginal price 389.00 kr - Original price 389.00 krOriginal price 389.00 krCurrent price 268.75 kr268.75 kr - 268.75 krCurrent price 268.75 kr
Aluminum anode TYPE 15 - 8.46*3.7*1.18inch
In stockProduct specification 15-AL Material: Aluminum Alloy : Beralin, Norsok Article: B210150 Net weight : 1.2 KG/2.65 lbs Gross weight: 1.5 KG/3.31 lb...
View full detailsOriginal price 389.00 krOriginal price 389.00 kr - Original price 389.00 krOriginal price 389.00 krCurrent price 268.75 kr268.75 kr - 268.75 krCurrent price 268.75 krSave 31% -
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Aluminum anode type 25 - 10.4 * 4.52 * 1.33inch
In stockProduct specification 25-AL Material: Aluminum Alloy : Beralin, Norsok Article: B210250 Net weight : 2.1 KG/4.63 lbs Gross weight: 2.5 KG/5.51 lb...
View full detailsOriginal price 579.00 krOriginal price 579.00 kr - Original price 579.00 krOriginal price 579.00 krCurrent price 402.50 kr402.50 kr - 402.50 krCurrent price 402.50 krSave 30% -
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In stockProduct 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....
View full detailsOriginal price 1,658.00 krOriginal price 1,658.00 kr - Original price 1,658.00 krOriginal price 1,658.00 krCurrent price 1,335.00 kr1,335.00 kr - 1,335.00 krCurrent price 1,335.00 krSave 19% -
Original price 400.00 krOriginal price 400.00 kr - Original price 400.00 krOriginal price 400.00 krCurrent price 343.75 kr343.75 kr - 343.75 krCurrent price 343.75 kr
Aluminiumanod TYP 15 (AL-arm) - 215*95*30
In stockProduktspecifikation 15-AL Material: Aluminium Legering: Korrosionsgruppen AB, Beralin, Norsok Artikel: B210155 Nettovikt: 3.1KG/5.07LB Brutt...
View full detailsOriginal price 400.00 krOriginal price 400.00 kr - Original price 400.00 krOriginal price 400.00 krCurrent price 343.75 kr343.75 kr - 343.75 krCurrent price 343.75 krSave 14% -
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In stockProduct specification Material: Aluminum Alloy: US MIL Item: B210255 Weight: 2.3kg/5.07lb Reinforcement:Aluminum C-C: 315mm/12.4in Bolt hol...
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Original price 609.00 krOriginal price 609.00 kr - Original price 609.00 krOriginal price 609.00 krCurrent price 487.50 kr487.50 kr - 487.50 krCurrent price 487.50 kr
Aluminum anode 650g, 180*46*35mm (180mm), hole 13*25mm
In stockProduct specification Material: Aluminum Item: T00387ALAL COD kg lbs in l a h Ø strap 00387AL 0.65 1.43 mm inches 180 7.09 120 4....
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Aluminumanode TYP 60 - 570*110*43
In stock6.0 KG/13.22 LB aluminum anode for ships holes
Original price 1,150.00 krOriginal price 1,150.00 kr - Original price 1,150.00 krOriginal price 1,150.00 krCurrent price 893.75 kr893.75 kr - 893.75 krCurrent price 893.75 krSave 22% -
Original price 723.00 krOriginal price 723.00 kr - Original price 723.00 krOriginal price 723.00 krCurrent price 603.75 kr603.75 kr - 603.75 krCurrent price 603.75 kr
Aluminum anode type 43 - 13* 5.9 * 1.4inch
In stockProduct specification 43-AL Material: Aluminum Alloy : Beralin, Norsok Article: B210430 Net weight : 3.6 KG/7.94 lbs Gross weight: 4.3 KG/9.48 lb...
View full detailsOriginal price 723.00 krOriginal price 723.00 kr - Original price 723.00 krOriginal price 723.00 krCurrent price 603.75 kr603.75 kr - 603.75 krCurrent price 603.75 krSave 16%
