Which anti-foul on aluminium?

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I have just purchased a 35' x12' Swedish built 1969 'Exoverken' 'Exotic' with aluminium hull, does anyone know of any more or better still an owners club?
My real question is I am about to antifoul it, I have purchased standard hard antifoul that states on the tin 'contains cuprous oxide and Rosin'
I have been advised by three different exerienced sources that it will contain copper and is corrosive to my aluminium hull and should not be used even with a suitable undercoat.
I have already done it, three coats, so need some advise before I start the unenviable task of stripping it off again.

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You may have a problem...

Not sure whether you're about to antifoul, or whether you've already done it, but you need specialised antifouling for ally hulls. Check out <A target="_blank" HREF=http://www.yachtpaint.com/uk>International's website</A> for starters.

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The hull should be etch primed, and then epoxy coated (probably already at this stage on your boat). You then MUST use a copper and tin free antifoul - Sikkens do a specialised one (which I use on my Ali Trintella), and International and Blakes do one to, but I cant comment on their efficacy. The Sikkens actually lasts better than the Interspeed I used on our last (motor) boat, so there is no trade off in performance. The Blakes is called Lynx, the International is Trilux

International and Sikkens are if Irecall both owned by AKZO Nobel, so there may be similarities.

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Re: You may have a problem...

I HAVE USED INTERNATIONAL "TRILUX" ON MY TWIN ALUMINIUM Z DRIVES FOR YEARS,GREAT STUFF,LASTS TWO YEARS,AND YOU CAN EASILY PAINT OVER IT WITH A TOP COAT.

HAPPY SAILING

TYNESMAN

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The farther two metals are separated from one another in the electrochemical series, the more powerful is the electric current produced by their contact in the presence of an electrolyte. Copper and aluminium are just about as far apart as you can get with aluminium at the top of the table (below magnesium). The aluminium will corrode ... rapidly. Some more info and detailed explanation here:

http://www.gordonengland.co.uk/corrosion.htm

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