Marine Ply Thickness
DrBJK
Hello
What is the thinnest plywood available for cold molded laminate type
construction? If you also have a # handy for a supplier I would
appreciate it.
Thanks in advance...Bob
Tim Adams
Hiya Bob
I *think* that aircraft ply comes as thin as 3/32 - basically three-ply at
1/32 per ply. If you're doing cold-molding, you shouldn't need marine ply
as it will be completely encapsulated. You'll definitely like the way that
the clear, voidless aircraft ply follows a curve.
I don't know if marine play is available that thin, and it won't likely be
as good quality as aircraft ply, although it should be very high quality
and voidless. If the marine ply is treated, you may have adhesion
problems when molding. You can find sources for marine ply by looking in
WoodenBoat magazine (they have a homepage - search "WoodenBoat" at
http://www.lycos.com). Another plug for them, I really am earning free
stuff.... don't you think? ;-) It's a GREAT magazine for the wooden boat
owner/builder/restorer/buff.
I'm not really well versed in cold molded construction, but it seems to me
that you don't have to use plywood - in fact, plywood would be difficult to
shape to some of the complex curves that cold-molded construction seems to
be best suited for. I've scanned some articles on cold molded construction
(I've never been interested in cold molding, so I didn't really read them)
and my memory tells me that they used cedar in very thin strips about two
or three inches wide. My memory is generally poor, though, so be sure to
wait for advice from the pros.
Cya!
DrBJK <dr...@aol.com> wrote in article
<53k2s7$4...@newsbf02.news.aol.com>...
Dan Bollinger
DrBJK wrote:
>
> Hello
> What is the thinnest plywood available for cold molded laminate type
> construction? If you also have a # handy for a supplier I would
> appreciate it.
>
> Thanks in advance...Bob
Generally cold molded boats are made from layers of veneer, the result is
plywood, or laminated wood. Veneers commonly used in cold-molding are in
the 1/12" to 1/8" range for small boats.
Actually, the term plywood implies each veneer layer is at 90 degrees
opposition of grain. Laminate implies each layer has its grain in the
same direction.
JMG2
At the local Home Depot (Melbourne), they sell 1/8" Lauan, real cheap
($10.00) but no voids and quite good for cold molding of small boats.
Jacques Mertens
Boat Plans Online: http://www.bateau.com
Matt Pedersen
>
>I'm not really well versed in cold molded construction, but it seems to me
>that you don't have to use plywood - in fact, plywood would be difficult to
>shape to some of the complex curves that cold-molded construction seems to
>be best suited for. I've scanned some articles on cold molded construction
>(I've never been interested in cold molding, so I didn't really read them)
>and my memory tells me that they used cedar in very thin strips about two
>or three inches wide. My memory is generally poor, though, so be sure to
>wait for advice from the pros.
The smallest I've seen in marine grade is 3 mm (about 1/8").
The plywood is used usually for the first layer in cold molding
because the thin veneers don't stay very fair when they get
stapled to the open mold. The plywood is much more stable.
Once at least one stable layer is put down the veneers can be
used.
Try Edensaw Woods in Anacortes, Washington. I believe they may even
be on the web (try your search engine or directory assistance
for area code 360).
Matt
Mickey McKinney
Edensaw Woods is actually in Port Townsend, Washington and can be reached at
211 Seton Rd.
Port Townsend, WA 98368
phone: 360-385-7878
email: ede...@olympus.net
WWW: http://www.olympus.net/edensaw/index.htm#marine
Enjoy, Mickey
Mickey McKinney
I wrote:
> Edensaw Woods is actually in Port Townsend, Washington and can be reached at
>
> 211 Seton Rd.
> Port Townsend, WA 98368
>
> phone: 360-385-7878
> email: ede...@olympus.net
> WWW: http://www.olympus.net/edensaw/index.htm#marine
>
> Enjoy, Mickey
Oops, I forgot to include their 800 number:
Mickey
Brian Bennett
DrBJK wrote:
>
> Hello
> What is the thinnest plywood available for cold molded laminate type
> construction? If you also have a # handy for a supplier I would
> appreciate it.
>
> Thanks in advance...Bob
Try the Dean Company in Gresham Oregon 503 665-2161.
With cold moulding you build the plys up over a male mold or in a female
mold. Gougeon Bros. cover this method in their book.
Brian Inhanbla Gmunka
Brian Bennett
Mike Welch
Jumping in here...
Funny you should point that out. That's exactly what I've used to
create a small river boat (3' x 5').
Lauan is a hard wood that looks and feels a lot like oak, but has the
smell of cedar (it's great stuff). The reason it's so cheap, though, is
because it's from the rain forests (believe it). If your Home Depot has
it now, it's probably the last of their stock. Because of the political
ramifications of carrying wood that comes from the rainforest, HD isn't
supposed to restock it.