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Repairing a small ding in the finish.
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Kevin M.
Nicholson, Pa
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September 30, 2012 - 6:21 pm
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I had this video sent to me today and thought it might be valuable for people here.  If you have a polymer finish do it exactly ass in the video. If you have oil or spirit finish just substitute your finish for the crazy glue.  This is pretty much how I do it except I use a spirit finish and instead of the real fine wet sanding I polish it in using a very thinned out spirit varnish with olive oil.  I you want to try my process, practice practice practice, you can very quickly ruin the entire finish but the wet paper works great.

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cdennyb
King for a Day, Peasant for many
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October 1, 2012 - 12:21 am
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outstanding video! I have learned something new and I was very impressed with his techniques and tricks.

 

thanks Kevin for posting that!thumbs-up

"If you practice with your hands you must practice all day. Practice with your mind and you can accomplish the same amount in minutes." Nathan Milstein

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Fiddlerman
Fort Lauderdale
October 1, 2012 - 10:15 pm
Member Since: September 26, 2010
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I loved it too. Thanks for the post Kevin.

"The richest person is not the one who has the most,
but the one who needs the least."

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ftufc
SoCal
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October 2, 2012 - 12:16 am
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Kevin, this was GREAT!  Thanks for sharing this; can't wait to try it.

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DanielB
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October 4, 2012 - 4:46 am
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The same sort of technique, of building up layers of superglue and then scraping and sanding, also works on guitar fretboards to fix the "ruts" that happen when the string eventually wears into the wood.  It is surprisingly hard to spot if done carefully, and is a good option if replacing the whole fingerboard just isn't a possibility at the moment. 

It *might* work on a violin/fiddle fingerboard as well, though replacement fingerboards for violin cost considerably less than guitar fretboards of similar quality/materials.

"This young wine may have a lot of tannins now, but in 5 or 10 years it is going to be spectacular, despite the fact that right now it tastes like crude oil. You know this is how it is supposed to taste at this stage of development." ~ Itzhak Perlman

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Tyberius
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November 10, 2012 - 2:08 am
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I don't advise ametures repairing small dings in the finish of your instrument. Any compound will seep into the wood grains. The back and belly are especially suseptible to this with their tapered cross sections. The hard nodules caused by resins (not rosin) glues or after fabrication stains (or chemical reactions stain problems) can cause serious acustic nightmares. The "soundbox" is not as large as on a guitar (as shown in the video) so any problems will be amplified by the smaller surface. The resonance can be affected and "wolf" type harmonics can be induced permanently into your violin.

 

It can affect the Helmholtz effect of the Air coming out of the f holes the same way   "toilet paper gluing" a high perfomance speaker cone affects clearity and quality sound.

"I find your lack of Fiddle, disturbing" - Darth Vader

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RosinedUp
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November 10, 2012 - 3:55 pm
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Plenty of work to do on Willie Nelson's guitar:

 

 

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DanielB
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November 10, 2012 - 5:47 pm
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x_Tyberius_x said
I don't advise ametures repairing small dings in the finish of your instrument.

Hi Ty.  Oh, some of the stuff that at least some of us do around here will be likely to turn your hair white, then.  LOL 

 

Now that guitar of Willy Nelson's, the autographs on it are probably worth more to him than the guitar is. 

"This young wine may have a lot of tannins now, but in 5 or 10 years it is going to be spectacular, despite the fact that right now it tastes like crude oil. You know this is how it is supposed to taste at this stage of development." ~ Itzhak Perlman

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Tyberius
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November 10, 2012 - 10:59 pm
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hahaha, I have seen that guitar before. I've also seen a high school trumped with a rusted and extremely dented bell play an amazingly haunting, yet mellow tone like of which i've never heard since.

 

Like most science, its often stumped by reality. I'll step off my analysis chair and see what esle can happen. It seems with an amalgamation of people here, their skills, talents and ingenuity, there's no end to what I can learn outside of a book or 3.  wink

"I find your lack of Fiddle, disturbing" - Darth Vader

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