Refurbishing aluminium rudder stock

northwind

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6 May 2010
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Me -Storrington / boat Chichester
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I have an aluminium rudder stock, attached to the boat with stainless steel brackets and bolts..

It needs some tlc, I plan on stripping it down, removing the paint and starting from scratch.

The aluminium and the lower gudgeon have of course been fizzing away in salt water, so there is a bit of corrosion; does this need treating? or can I just remove the fittings, apply etch primer, and then use some Tef-gel when I reassemble?

Is there anything else I can do to keep the galvanic corrosion at bay?

Thanks
 

ianabc

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21 Oct 2003
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BC Canada
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Powder Coating

We took all our cleaned aluminium parts including tiller, dorade boxes, hatches etc to a powder coating specialist.

They powder coated them in whatever colour we wished for much less than just the paint would have cost for us.

They are glass shot re cleaned and then electrostatically coated with an epoxy paint just as bridges are, no waste no overspray.

Our parts have held up well through 5 years so far.
 

Seajet

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23 Sep 2010
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Glad to hear your parts are holding up. :)

While Ian's solution is ideal, coating the interface between stainless & alloy fittings with 'Duralac' zinch chromate paste helps a great deal if time or money are short; my kit built Bowman alloy mast with stainless fittings is 34 years old and is fine, touch - wood - or stainless...
 
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