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Posts: 1777
Joined: Jul. 11 2003
From: The Netherlands
French Polish drying
Hi Luthiers,
Last year I bought a nice blanca from a rather sweaty guy. A part of the back and side was worn out with french polish.
When I was a kid, I helped my father with some frenchpolish on his grand piano. So I thougt, well I give it a try. The result, I am happy with! Now it is finished and I want to know how long I have to let it dry. When is it save to touch it and play the guitar again?
Posts: 1766
Joined: Jan. 29 2012
From: Seattle, Washington, USA
RE: French Polish drying (in reply to gerundino63)
Yes, it sounds like the problem is the polish solution was old and spoiled.
A lot of people report that shellac solutions for French polishing don't stay good for long. I think this is because they use alcohol that has water in it. I use anhydrous (no water) alcohol and my solutions have stayed good for over a year.
You should mix your own solution starting from solid shellac and either use it right away or use anhydrous alcohol.
RE: French Polish drying (in reply to gerundino63)
quote:
Will it get dry over time?
You can try more spiriting off. Use oil and alcohol alone ad go over the sticky area and gradually use less oil and a a drier and drier pad until you're working with only alcohol, but very dry. Sometimes that teases out the problem.
You should mix your own solution starting from solid shellac and either use it right away or use anhydrous alcohol.
Doctor, have you noticed any other benefits to using anhydrous ethanol or lab grade stuff? One would think it would be better to not have any water or impurities that might be in the stuff from the liquor store...
I bought my own french polish and did the whole back once more. Let it dry out, very fast this time, thanks Estebanana! And now I enjoy french polishing so much, I started to do a little wooden old box. Good resultate. I hink I found me a new hobby….😃
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