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Subject: Re: Seamaster 27 Deck Layup


Author:
Dave Smith
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Date Posted: 20:55:38 10/11/2010 Wed
In reply to: Alan Law 's message, "Seamaster 27 Deck Layup" on 11:33:04 24/01/2010 Sun

>Does anyone know what the GRP layup is in the deck
>molding on a SM 27? We're having a discussion
>elsewhere about general boat layups, and someone
>reports an owner having a "springy" deck on their
>Seamaster.
>
>I'm wondering if they are balsa cored...
Yes they did have end grain 12mm thick balsa sheet.With soft wood stringers running across the deck,and a piece of either 6x1 or 4x1 running fore and aft,all will be glassed over.but i have heard that damp causes the timber to rot.some owners think its due to water leaking in.this could be the case with water leaking in through the fore deck fitting.The deck lay up should be firstly 2 layers of 2oz per sqare yard,followed by balsa sheet and soft wood stringers,finally the lot is glassed over with a further 2 layers of 2oz matt,giving a total of 3/4 of an inch including the balsa core.Hope that helps?
I built Seamaster s for 18 years by the way.
Regards Dave smith

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