Shaft wrapping is an activity that our specialists perform on a regular basis, mostly for new ships while they are under construction.
Whenever the design of a vessel mandates that the propeller shaft or rudder stock lies exposed to open seawater, then it should be protected against electro-chemical corrosion. This type of corrosion occurs in the presence of (sea-) water and air (or dissolved oxygen) and the usual way of avoiding it is to coat the shaft with a protective layer of fiberglass.
The following picture shows an example of a rudder stock showing severe signs of corrosion. This is the very outcome that wrapping prevents.
The wrapping process as such is very well established and the results are excellent. During dry docking, we have recently inspected some shafts that we have wrapped ten years ago. We found the wrapping in still perfect condition.
Witness here how our specialists are doing it:
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