Alas, birch ply is a poor material for boatbuilding.
Birch is not the least bit decay resistant and i've never seen a birch ply
made with water resistant glue.
Save it for furniture and cabinets.

"Joe Pal" wrote in message
news:IpZ2f.30711$A52.21867@trnddc02...
Birch plywood boat: http://mysite.verizon.net/res1frj8/index.html

I don't know how good it is, but I've seen Finland Birch Marine Ply
advertised. Thanks, Ted in Mich.

Jim Conlin wrote:
Alas, birch ply is a poor material for boatbuilding.
Birch is not the least bit decay resistant and i've never seen a birch ply
made with water resistant glue.


Here in Norway you will get a lott of Birch plywood mad in Finland and
with WBP glue. They also make a Birch plywood threated with phenol film
suitable for use on car trailers etc. An very resistive to water and
damage. And Birch plywood is probably the strongest plywood available.

What goes for the US might not be the what goes for Europe.

--
Oddgeir
My boat project: http://www.oddgeirkvien.com/baat

On Wed, 12 Oct 2005 09:09:50 -0400, Jim Conlin wrote:

Alas, birch ply is a poor material for boatbuilding.
Birch is not the least bit decay resistant and i've never seen a birch ply
made with water resistant glue.
Save it for furniture and cabinets.

In 1989 I built cross-beams for my cat
http://hem.bredband.net/b262106/

Carbon was way outside my budget and I didn't have the
equipment or skills needed to create really good glass
laminates. After some research I opted for a combination
of (Scandinavian) Birch plywood and Sitka Spruce. Having
looked up structural data for these I am not surprised
these were many times the materials of choice for aircraft
in the pre-aluminium era. I use epoxy for protection.
I have had no problems with these beams.
http://hem.bredband.net/b262106/Boat/beams.html

/Martin