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cupped panels

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Blog entry by paulburch posted 997 days ago 575 reads 0 times favorited 2 comments Add to Favorites Watch

about 4 or 5 months ago i came across a nice figured english elm board about 6”x 28” what to do with it i said, deciding to resaw it for two bookmatched door panels in a small cabinet off i went ,when i planed away the bandsaw marks the panels were thinner then i wanted them to be so i resawed some red elm face glued them to the back of the panels then planed them to the desired thickness perfect .i proceeded to cut up the stiles&rails for the doors from some red elm ,hit the good side of the panels with a coat of shellac then assembled the doors they looked real nice.I then set them on the shelf in my basement work shop for the future cabinet build . well its july in Nova Scotia and a little humid in the basement ,time to start that cabinet,to my surprise the panels were able to cup within the door assembly ,i guess i should of shellaced both sides of the panels but i figured once it was assembled they would be ok .just when you think you know what you are doing it comes back to byte you in the ass,one way or another i plan to recover those panels “any thoughts “

-- paul burchell



2 comments so far

View Brad_Nailor's profile

Brad_Nailor

2527 posts in 2460 days


#1 posted 997 days ago

Humidty + one sided finish = cupping! It probably wouldn’t have prevented it completely, but you always finish both sides.. Try bringing them into a space with dryer air and get them to flatten out and shellac both sides.

-- http://www.facebook.com/pages/DSO-Designs/297237806954248

View DocSavage45's profile

DocSavage45

4372 posts in 1345 days


#2 posted 519 days ago

Additional problems can come from the materials you laminated. Glue drying will also effect the moisture content. Put them in a big plastic bag w humidity. A tip from Charles Neil. Do three layers. And always do to one side what you do to the other. Oh yeah seal the end grain.

It’s a crap shoot!

-- Cau Haus Designs, Thomas J. Tieffenbacher

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