LumberJocks

Reply by Underdog

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Posted on Chinese Plywood

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Underdog

1020 posts in 1787 days


#1 posted 04-23-2015 06:19 PM

The bunks of Chinese birch ply (prefinished) that I get are wrapped in a couple layers of cardboard and umpteen zillion steel bands. Stamped right on the side of the bunk is a note saying it’s made with formaldehyde.
When you have glue in the formaldehyde, it allows a lot of open time. The reason for this is that they lay up the flitches by hand, and if they have gaps, they can cut a filler by hand and insert it.
The other thing that goes on is that the core flitches are wet when glued up, then the whole mess is put together with high pressure and high heat (to cure the glue and the wood). During the process of making a single core, this may happen several times before it reaches the final thickness and it is ready for the outer veneer.
And of course you never know exactly WHAT kind of wood is going into this stuff.
And yep, we use it all the time… I don’t like it, but it’s the least expensive prefinished ply.

-- "woodworker with an asterisk"


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