Hello.
I bought my plans, fs 14, and now I search for plywood. I can't find anything but okume B/BB 3 ply, BFU100, with the interior ply made of poplar for the 1/4 and some 5ply all ply okoume for the 3/8. The 3 ply all ply okoume is available only in 5 mm, instead of 6 in the plans. This is the only plywood available. Wich one shuld I choose?
If I apply 2 layers of fiberglass and resin on the hull, in order to protect the plywood better, it would be too havy or any other disadvantage?
FS 14 chinese okoume
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Re: FS 14 chinese okoume
With plywood that you are not certain of, it is best to test first- look along the edges and cut a couple samples pieces (small) and check that there are no gaps in the inner plies. Then boil the small pieces in a pan of water for an hour or so. If they don't delaminate or break apart, they should be fine.
No need for 2 layers of fiberglass. If you put one layer over it all, no water should ever touch the plywood and it should be fine. 2 layers will be heavy and expensive and not needed.
No need for 2 layers of fiberglass. If you put one layer over it all, no water should ever touch the plywood and it should be fine. 2 layers will be heavy and expensive and not needed.
Re: FS 14 chinese okoume
No need to check, I know that Chinese plywood and it will rot. We tested it years ago and the poplar core is not rot resistant. Yes, the epoxy-fiberglass will protect it but not perfectly.
Can you find some exterior plywood that is rot resistant?
Can you find some exterior plywood that is rot resistant?
Jacques Mertens - Designer
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Re: FS 14 chinese okoume
I can chose the exterior okume, 3 ply, and the core also okume, but is only 5mm.jacquesmm wrote:No need to check, I know that Chinese plywood and it will rot. We tested it years ago and the poplar core is not rot resistant. Yes, the epoxy-fiberglass will protect it but not perfectly.
Can you find some exterior plywood that is rot resistant?
Or I can chose exterior birch plywood.
Re: FS 14 chinese okoume
When I say exterior, I mean exterior type plywood not plywood with an exterior layer of Okume.
That is the problem with that Chinese Okume: only the outside (exterior) layer is made from Okume, the other layers are poplar and poplar will rot.
That is the problem with that Chinese Okume: only the outside (exterior) layer is made from Okume, the other layers are poplar and poplar will rot.
Jacques Mertens - Designer
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http://boatbuildercentral.com
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Re: FS 14 chinese okoume
They have the okume with poplar, or they have an exterior, not marine, plywood with all the 3 layers, including the core made from okume, no poplar. This is not Chinese, is made in France.jacquesmm wrote:When I say exterior, I mean exterior type plywood not plywood with an exterior layer of Okume.
That is the problem with that Chinese Okume: only the outside (exterior) layer is made from Okume, the other layers are poplar and poplar will rot.
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Re: FS 14 chinese okoume
So, an exterior grade plywood with all the layers made from okoume is ok?
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Re: FS 14 chinese okoume
Surely better but strange that you don't find real marine plywood
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Re: FS 14 chinese okoume
I see you are in Italy. Can you help me with an online store that can ship to Romania?danieloldhouse wrote:Surely better but strange that you don't find real marine plywood
If no, i have to chose betwen 6mm okume and poplar or 5mm 100% okume, exterior grade, but this is not too thin?
Re: FS 14 chinese okoume
Do a search for Rougier plywood. It is made in Italy and real Okume all the way through.
Jacques Mertens - Designer
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