Kristian Ferrell
Anodes are used to prevent corrosion in boats and trailers. However, they are only effective when submerged in water, as the circuit needs to be completed. This means that anodes are not suitable for boat trailers, unless they are kept in the water.
| Characteristics | Values |
|---|---|
| Anodes work in water | Yes |
| Anodes work in air | No |
| Anodes work on boat trailers | No |
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What You'll Learn
Anodes won't work unless the trailer is in water
Anodes are used to stop corrosion on boat trailers. However, they won't work unless the trailer is in water. This is because the circuit between two metals needs to be completed by a salt water conductor.
A user on a boating forum explained that they were rebuilding a 2005 float-on trailer, and that all the galvanised parts had disintegrated. They discussed using anodes on the trailer with their local boat dealer, but were advised that unless the trailer was always underwater, anodes wouldn't work.
Another user, a field engineer in the Gulf, confirmed that anodes are used on subsea architecture and ROVs because they spend most of their life underwater. They also said that anodes would only add weight to a trailer unless it was kept in water all the time.
Therefore, if you are considering using anodes on your boat trailer, it is important to remember that they will only be effective if the trailer is submerged.
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Anodes can help stop trailer corrosion
If you are rebuilding a trailer with aluminium and galvanised parts, you can discuss adding anodes with your local boat dealer. They may suggest spacing different metals with dense rubber or nylon shims.
However, if your trailer is not always underwater, anodes may not be effective. They will only add weight to your trailer.
ROVs and subsea architecture have anodes because they spend most of their time underwater.
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Anodes can be used to separate dissimilar metals
Anodes can be used to stop corrosion on boat trailers. However, unless the trailer is always underwater, anodes will not work. They will only add weight to the trailer.
One engineer suggests spacing different metals with dense rubber or nylon shims instead of using anodes.
Another engineer suggests that anodes are only worth using if the trailer is kept in the water all the time.
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Anodes can add weight to a trailer
Anodes are used to prevent corrosion, but they are not always necessary. If you are rebuilding a trailer, it is a good idea to space different metals with dense rubber or nylon shims to prevent corrosion.
If you are keeping your trailer in the water all the time, a zinc anode will add weight to your trailer and may be beneficial. However, if your trailer is not always underwater, it is unlikely that anodes will be effective.
It is important to consider the weight that anodes can add to a trailer, especially if the trailer is not always submerged. While anodes can be effective in preventing corrosion in underwater structures, they may not be the best solution for a trailer that spends most of its time out of the water.
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Anodes can be used on aluminium trailers
A sacrificial zinc anode can be added to a trailer, but unless the trailer is kept in the water, it will only add weight.
One engineer who works in the Gulf says that all of the subsea architecture has anodes because they are permanently installed underwater. ROVs also have them because they spend most of their time underwater.
If you are rebuilding a float-on trailer with a galvanised tongue and axles, you can discuss the use of anodes with your local boat dealer.
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Frequently asked questions
No, anodes won't work unless they are in water.
Anodes need to be in water so that the circuit can be completed.
The best way to stop corrosion on a boat trailer is to separate dissimilar metals with dense rubber or nylon shims.
The anode is made of zinc.
Unless your trailer is always in the water, an anode will only add weight to your trailer.
