Reply by Waldschrat

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Posted on How do I fix a Veneered chessboard that's backing "cupped"

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505 posts in 3432 days

#1 posted 04-05-2009 08:11 PM


I looked at your stuff and I first want to say, well done, the chess board looks great!

Ok at risk at stating the obvious, rule number one of veneering anything, and I mean everything, chessboard, panel, door, whatever is always use a symetrical build up of the layers. Ok, the only exception is well, ok there are probably two i can think of… is when you have a chessboard, root burl, or some sort of intarsien, and the second is when you have a vapor barrier on a door. That is why your board warped.

How to fix it? that is much more difficult. A important factor is what kind of glue did you use to veneer the chessboard to the core wood? If you used white/yellow glue (PVA or PVC), than it will make everything to repaird your problem a bit easier.

You could try using a veneer that is exactly the same thickness of what you have on the side you veneered, put it in the press and us a duroplast adheasive, so a Urea-Resin Glue (plastic resin adheasive)... an example out of the trusty “pocket ref” is the “DAP Weldwood Plastic Resin Glue”, I have never personaly used this one, as we do not have this brand here. but it is the type of glue that is important. Make sure that the grain of the backing veneer is perpendicular to the core wood!

That should straighten everything out, but I can not promise. Normally when workingwith solid wood cores there is a “locking”veneer, approx 1mm thick then comes the final veneer. These veneers should always be layed so that every layer is perpendicular to each other and symetrical (excecpt chessboards, etc… ) Then you will have garanenteed a flat board.

-- Nicholas, Cabinet/Furniture Maker, Blue Hill, Maine

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