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Anodes for Hull and Shaft

Usually anodes need to be changed once a season, and even more frequently in rough waters. The required material of the anode depends on the material of the boat and the sailing area. You can choose between zinc, magnesium and aluminum anodes. Sacrificial anodes must never be painted over, brushed off or lubricated. Learn more about Hull / Shaft Anodes...
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Zinc Propeller / Shaft Anodes

Shaft Anodes / long Shaped, zinc
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Shaft Anodes / long Shaped, zinc
from 30 98 €
(1)
3 variants
Zinc Collar Nut Shaft Anodes
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Zinc Collar Nut Shaft Anodes
from 13 06 € €16.99
(70)
8 variants
-23%
Shaft zinc anodes, short version
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Shaft zinc anodes, short version
from 5 00 € €12.54
(43)
9 variants
-60%
Zinc Anode with Cutter SLC / 25 / 30 / 35 mm
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Zinc Anode with Cutter SLC / 25 / 30 / 35 mm
from 69 53 €
(27)
3 variants
Zinc anode - hat shape / conical
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Zinc anode - hat shape / conical
from 8 57 € €10.31
(2)
3 variants
-17%
Zinc Anode - conical/conical
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Zinc Anode - conical/conical
from 22 14 €
(10)
10 variants
Zinc anode - conical / hexagonal
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Zinc anode - conical / hexagonal
from 7 26 € €8.92
(5)
9 variants
-19%
Shaft and Propeller Anode / Zinc
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Shaft and Propeller Anode / Zinc
from 48 35 € €55.45
No rating yet
3 variants
-13%
Shaft and Propeller Anode / Zinc
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Shaft and Propeller Anode / Zinc
from 48 35 € €55.45
No rating yet
7 variants
-13%
Shaft and Propeller Anode / Zinc
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Shaft and Propeller Anode / Zinc
from 48 35 € €55.45
No rating yet
9 variants
-13%
Shaft and Propeller Anode / Zinc
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Shaft and Propeller Anode / Zinc
from 40 28 € €48.77
No rating yet
10 variants
-17%
Shaft and Propeller Anode / Zinc
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Shaft and Propeller Anode / Zinc
from 38 27 € €48.77
(4)
10 variants
-22%
Alamarine Zinc Anode
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Alamarine Zinc Anode
from 8 02 € €9.46
No rating yet
3 variants
-15%
SARNICO Zinc Anode
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SARNICO Zinc Anode
only 534 40 € €602.14
No rating yet
Item will be ordered for you
-11%
OPERA Zinc Anode
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OPERA Zinc Anode
from 598 94 € €673.92
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2 variants
-11%
VERTIGO Zinc Anode
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VERTIGO Zinc Anode
only 528 35 € €612.46
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Item will be ordered for you
-14%
FERRETTI, Zinc Anode
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FERRETTI, Zinc Anode
from 24 16 € €27.02
No rating yet
5 variants
-11%
FERRETTI, Zinc Anode
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FERRETTI, Zinc Anode
from 479 95 € €751.68
No rating yet
3 variants
-36%
Ferretti Shaft and Propeller Anode / Zinc
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Ferretti Shaft and Propeller Anode / Zinc
only 653 40 € €736.13
No rating yet
Item will be ordered for you
-11%
DOLCE VITA Zinc Anode
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DOLCE VITA Zinc Anode
only 201 63 € €272.16
No rating yet
Available within 3-4 weeks
-26%
SPLENDIDA 72 Zinc Anode
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SPLENDIDA 72 Zinc Anode
only 633 23 € €712.80
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Item will be ordered for you
-11%
ACQUAVIVA Zinc Anode
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ACQUAVIVA Zinc Anode
only 30 21 € €34.99
No rating yet
Only 1 in stock
-14%
Zinc Anode with Cutter SLC / 25 / 30 / 35 mm
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Zinc Anode with Cutter SLC / 25 / 30 / 35 mm
from 65 49 €
(1)
3 variants
Zinc Anode for Flexofold Propellers
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Zinc Anode for Flexofold Propellers
only 20 11 € €22.25
No rating yet
Available on 09.10.2020
-10%
Zinc Anode for Gori Propellers 15'' - 16.5''
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Zinc Anode for Gori Propellers 15'' - 16.5''
only 12 05 €
No rating yet
In stock
Zinc Anode for Gori 2-Blade Saildrive Propeller / ring
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Zinc Anode for Gori 2-Blade Saildrive Propeller / ring
only 29 19 €
(1)
Only 1 in stock
Zinc Anode for Gori 3-Blade Saildrive Propeller / ring
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Zinc Anode for Gori 3-Blade Saildrive Propeller / ring
only 29 19 €
No rating yet
Only 2 in stock

Hull / shaft anodes

- Protect your boat with sacrificial anodes -

What are sacrificial anodes?

Sacrificial anodes are metals or alloys that have a more anodic, i.e. less noble, potential than steel and are used against corrosion. The less noble material of the anode "sacrifices" itself and dissolves, thus protecting the hull and the parts of the boat that are susceptible to corrosion. If the anodes don't show any signs of dissolving after a while, something might be wrong. Something is always getting dissolved. If the sacrificial anodes are not attacked by corrosion, another area is probaly affected by corrosion.

Where should anodes be mounted?

Anodes are mounted along the keel. The electric current is higher at the stern post due to the propeller being located there. It is advisable to install several anodes in this area. Anodes should also be mounted on the rudder and propeller shaft.

How often must anodes be changed?

Typically, anodes have to be replaced once per season. In harsh water conditions, a more frequent replacement schedule might be necessary. 

Which anode for which material and which water?

For the protection of hulls, engines and outboard motors made from aluminium alloys, zinc anodes are commonly used in salt- and brackish water. In fresh water conditions, magnesium anodes are commonly used. For hulls and other underwater parts made from steel, brass or bronze, zinc anodes may be used. However, they tend to be replaced more frequently than aluminium anodes due to the fact that zinc anodes always contain a small percentage of the toxic heavy metal cadmium. This is also why aluminium anodes are considered to be a lot more environmentally friendly. Moreover, aluminium anodes are more efficient, longer-lasting and recommended for usage in brackish waters or when going back and forth between salt and freshwater.

Can sacrificial anodes lose their effect?

Anodes must never be painted or lubricated! This is because they would lose their electrical conductivity with water and thus, they will not be able to properly prevent corrosion. If a boat stays on land for a long period of time, some layers of oxidation (especially in the case of aluminium anodes) might prevent them from functioning properly, as the potential difference might be too low.

Table for calculating the required amount of anodes (in kg), depending on the corresponding unprotected metal surface:

Metal surfaces in m2 / zinc anodes in kg
5 to 10 m2 / 5.5 kg
10 to 20 m2 / 9.5 kg
20 to 30 m2 / 18.0 kg
30 to 40 m2 / 20.0 kg
40 to 50 m2 / 25.0 kg

Customer Ratings & Reviews

All reviews (105.719)
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Monte P. on 16.09.2020

Fast delivery...3 days no extra charge.

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Gary D. on 16.09.2020

Cheapest and quickest delivery

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ANITTA N. on 15.09.2020

The product was great, which I had been looking for for a long time and delivery to the door fast

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