[Public-list] Bottom Job

Mike Lehman sail_505 at hotmail.com
Thu Jan 20 13:18:36 PST 2005


This was true on #244. Never had any blisters, then hauled, sand blasted the 
bottom, and put at least 20 coats of epoxy barrier coat, then bottom paint. 
Next year----thousands of blisters
Mike Lehman
 ><((((º>¸.·´¯`·...¸><((((º>


----- Original Message ----- 
From: "John Irving" <a30blueteal at gmail.com>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Thursday, January 20, 2005 12:49 PM
Subject: Re: [Public-list] Bottom Job


> I've been considering an epoxy coat "bottom job" as well because I'll
> be replacing bottom paint in the next year or so.
>
> I got an opinion from a trusted boatbuilder who advised against epoxy
> barrier coating unless the owner is already making significant blister
> repairs. He felt that problems can be created by sealing moisture *in*
> the laminate and blocking its avenue of migration out. He was aware of
> instances where epoxy coating a hull as a preventative measure
> actually caused blistering where none existed before.
>
> I'd appreciated hearing about the experiences listees have had with
> epoxy barrier coating.
>
> John #284
>
> On Thu, 20 Jan 2005 08:41:10 -0800 (PST), Michael Connolly
> <crufone at sbcglobal.net> wrote:
> > Roger,
> > Gougeon Brothers, Inc. publish several booklets that detail procedures 
> > for fiberglass repairs.  One is specific to Gelcoat Blisters.  When I 
> > did a bottom job I found that the Technical folks at Interlux were 
> > superb.  Since you are doing the full Monty I would strongly recommend 
> > applying an epoxy barrier coat of your choice.  I used Interlux products 
> > exclusively and have been very pleased with the results.   Oh yeah..  be 
> > sure to visit Popeyes web site to purchase the final top coat.
> > Michael
> >
> > Roger L Kingsland <rkingsland101 at ksba.com> wrote:
> > Albergers,
> >
> > In asking about "careening ship," I forgot to ask the more important 
> > question. How do I do a bottom job? The deck and topsides are ready for 
> > paint. I have gotten down to the gel coat a few inches below the boot 
> > stripe and discovered a total of about one square foot of blisters. I 
> > don't know if this means I should expect more or the hull is in good 
> > shape. Is it customary to sand blast everything then refinish the hull 
> > or should I take less drastic measures? It was quite a chore getting the 
> > few inches of bottom paint off in the area of the waterline. I used 
> > several coats of stripper and still had to do allot of sanding. I would 
> > appreciate any suggestions, particularly "how to" reference material.
> >
> > Thanks
> >
> > Roger 148
> >
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