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Old 02 July 2009, 10:17   #11
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Originally Posted by Geoff_Jubb View Post
If you painted the floor, would you get away with exterior ply, as the floor is not submerged? And if so, what paint do you use on them?
The paint will quickly rub off at the edges. I doubt you would get a full season out of floorboards made of conventional plywood. A given thickness of marine mahogany will also be much more rigid than conventional plywood.
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Old 02 July 2009, 10:21   #12
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Originally Posted by Geoff_Jubb View Post
If you painted the floor, would you get away with exterior ply, as the floor is not submerged? And if so, what paint do you use on them?
i was told by a marine ply supplier a good while back that most exterior ply was now resin bonded same as marine ply ,as a mate of mine was after some to build a boat with and said if its painted it should be fine ,though as p/t just said its the hard wood stuff that will be best .suppose you could give it a coat of grp resin .
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Old 02 July 2009, 11:00   #13
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i was told by a marine ply supplier a good while back that most exterior ply was now resin bonded same as marine ply ,as a mate of mine was after some to build a boat with and said if its painted it should be fine ,though as p/t just said its the hard wood stuff that will be best .suppose you could give it a coat of grp resin .
Ditto!

My SIB has two different decks, one the original multi-section deck as supplied, the second one home-made from Birch ply. I looked at marine ply (60/sheet!) but the supplier pointed me towards Birch ply for several reasons: exterior rating, 13-ply compared to 6-ply, resin bonded, used locally for boat hulls and also used by local hauliers for decking flatbed lorries without any problems. Best of all it was 29/sheet for 18mm
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Old 02 July 2009, 11:43   #14
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Thanks Stan,

The 18 mm birch plywood sounds like a good reasonably priced alternative. Let us know how it holds up.
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Old 02 July 2009, 12:41   #15
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Ditto!

My SIB has two different decks, one the original multi-section deck as supplied, the second one home-made from Birch ply. I looked at marine ply (60/sheet!) but the supplier pointed me towards Birch ply for several reasons: exterior rating, 13-ply compared to 6-ply, resin bonded, used locally for boat hulls and also used by local hauliers for decking flatbed lorries without any problems. Best of all it was 29/sheet for 18mm
Did you treat the ply Stan? Did you paint it?
Also, did you us a turnbuckle or did you make it but up to the thrust board?
Cheers,
Geoff
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Old 02 July 2009, 13:29   #16
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Ah yes, missed out the bit about treating the timber! Used a primer coat and then two coats of undercoat followed by two coats of International paint. Stood up to wear extremely well indeed. No turnbuckles required, butts up to the transom and the small bow board very tightly to keep the fabric taught. If the fabric shows any signs of sagging I'd seriously consider turnbuckles though.
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Old 02 July 2009, 15:07   #17
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My boat has 3 pieces that lock into aluminium side channels, then a triangular piece with a hole in for the keel valve, then a smaller triangle that is permanently fixed to the boat.
Do you use the single piece to replace the 3 bits that lock into side channel, or do you replace all 4 removable pieces?
Thanks,
Geoff
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