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Mon, May 13 2024, 05:46 [ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, [3], 4, 5, 6, 7, 8, 9 ]

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Date Posted: - Tuesday - 09/13/11 - 10:40am
Author: David Barrow
Subject: cabin top deck under mast

On my 1973 M36 Hull no. 10, I am removing layers of poorly applied fiberglass from the cabin top, which was originaly plywood painted. I have found some rot under the piece of plywood under my mast. eight years ago the mast was re-stepped onto a piece of one inch thick "wood" by way of a stainless steel mast plate, then this thick piece of wood. My question to the forum, anybody been in this position? this is getting scary!

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[> restated -- David Barrow, - Tuesday - 09/13/11 - 10:51am

I guess what Im asking is, I know the better repair would include removing the mast, removing the SS mast step, removing the wood base, butt, I'm already shortcutting by not replacing the cabin top's ply, instead Im glassing over it to a stregnth greater than what was, but as the mast is stepped on SS, then 1 inch wood block, followed by the support coming from the corner post in the head... Is it necessary to remove the mast and glass under the mast or can I just leave it?


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[> Coach deck -- Bruce, - Tuesday - 09/20/11 - 4:17pm

Hello David. Unfortunately, any of us who have tried to make repairs to the old Japanese plywood have found that it required replacement, in the end. Once one starts to cut out bad sections, it just turns to dust, and before you know it, we come to terms with the fact that it would be easier to just remove it and rebuild. I don't think any of us could give you the advice you may be looking for, which is to cover up the bad sections assuming that it may be stronger than before. The problem with that is that if the plywood has indeed been compromised, then the new fiberglass would compress into the bad ply, and eventually crack. Moral of the story - make no shortcuts. Do it the right way. The sooner you come to terms with this, the better. Best regards.


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