I have been asked to duplicate a seat-back fan on a pair of old mahogany chairs. This will require disassembling a couple of joints assembled with dowels and hide glue. The joints are too sound to pull apart w/o causing damage to the piece. I tried hot water – not steam, and I carefully tried a hot air paint stripper to soften the glue but stopped when I realized the the efforts would seriously harm the finish, lacquer or varnish. Any tips on how to get the hide glue to release w/o damage to the finish or shattering the the wood?
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Replies
I honestly never thought the time would come where I could direct someone to this link!
http://aic.stanford.edu/jaic/articles/jaic43-01-003_2.html
Look way down at the bottom...to summarize you can use a microwave!
Chris
Thanks hd. Definitely a high tch solution, however, these are dining room chairs and will not fit in my microwave nor will I be buying aWood miser glue system. Interesting however.
It also mentions scorching maple samples if left in the micowave too long-something I did. It took months and many boxes of Wheaties and bowlsof coffee to eliminate the odor. I was trying to dry green wood that I had carved or turned, I don't remember.
Jim
My understanding from another thread several months ago is.... flood the joint with DNA (de-natured alcohol). It crystalizes the glue and makes it is easier to disassemble the jointery.
SawdustSteve
Thank you, Steve. Will give it a try. I don't think that the alcohol will affect the finish.
Jim
My solution has been to drill very small holes in an inconspicuous place and use a hypodermic needle to shoot in water, preferably hot. Keep putting water in throughout the day and it should loosen the joint.
Jim, I dry my dyed veneer samples in the microwave. Then I can plane the edge and check penetration of the color.
I now have my own microwave dedicated to the wood shop activities.Ron in Peabody
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