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Soutie 08-28-2006 04:02 AM

Osmosis repair completed now what?
Long story short, I have completely resheathed my hull as a 'more permanent' solution to my osmosis problem and also to rebuild the outer glass layer (foam sandwich hull) after having removed the gellcoat once and then removed the first repair attempt (done professionally by a boatyard using the West System). I have used Bi-axial cloth and epoxy resin. The hull has now been faired using epoxy filler and I am now ready to do the antifoul application.
What should I use (if anything) before applying the antifoul?
Seems unnecessary to now use something like West Barrier System when I have already applied a completely new 'barrier' by way of the cloth and epoxy resin. Should I just apply a hull 'paint' then the antifoul?

sailingdog 08-28-2006 08:16 AM

It depends on the anti-fouling you want to use. Some require a primer. Some only require a primer for certain types of hull materials. I don't think a barrier coat is going to be necessary, given all that you've just finished doing.

sailingfool 08-28-2006 08:35 AM

54 Attachment(s)
See the Interlux website for priming and compatibility advice:

If you feel you don't find a clear answer in the material they have on the web, you can call them at 908 686 1300 and one of their tech people should be able to help you. I have found them very rersponsive in the past.

Good luck.

Soutie 08-28-2006 09:59 AM

Answers osmosis query
Thanks Sailingdog I agree the epoxy is in itself the new 'barrier coat' but as Sailingfool says perhaps a call to guys who sell the stuff would be worthwhile to make sure that the antifoul does not have a compatability problem with the epoxy filler that necessitates some sort of 'primer'. I'm trying now to get hold of the local guys (I'm based in South Africa).

sailingdog 08-28-2006 12:18 PM

You might want to try contacting the MFG. via e-mail if you don't get a response from the locals.

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