repair to laquer on back of guitar

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parilla1936

Posts: 2
Joined: Mar. 26 2015

repair to laquer on back of guitar

Hi
Just joined this wonderful forum, my problem is I have just purchased a "prudencia saez"
flamenco negra which has had a "ding" at the back cracking the finish I have read that these cracks can be filled with drop of some sort of super glue can anybody out there
help would be a great help
thanks jim.

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 26 2015 18:58:58

jshelton5040

Posts: 1500
Joined: Jan. 17 2005

RE: repair to laquer on back of guitar (in reply to parilla1936)

quote:

ORIGINAL: parilla1936

Hi
Just joined this wonderful forum, my problem is I have just purchased a "prudencia saez"
flamenco negra which has had a "ding" at the back cracking the finish I have read that these cracks can be filled with drop of some sort of super glue can anybody out there
help would be a great help
thanks jim.

dealing with lacquer finishes is a job best left to a luthier who uses lacquer himself. It's a forgiving finish and there are many ways of doing touchups but putting a drop of cyano acrylate may or may not be the best solution. Without seeing the ding it's hard to give advice but generally I would prefer drop filling with lacquer over super glue.

_____________________________

John Shelton - www.sheltonfarrettaguitars.com

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 26 2015 21:01:59

MikeC

Posts: 79
Joined: Mar. 19 2015
From: Panama (living in South Florida)

RE: repair to laquer on back of guitar (in reply to parilla1936)

In case you decide to go through with the repair yourself, here is a youtube link that explains how to do it:

http://youtu.be/jFX4WNiX0PU

I haven't tried this myself but Robert O'Brien is reputable luthier and has great tips on his channel.

Good luck!

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 26 2015 21:56:16

keith

Posts: 1108
Joined: Sep. 29 2009
From: Back in Boston

RE: repair to laquer on back of guitar (in reply to parilla1936)

There is a chance the finish used is not lacquer but catalyzed polyurethane (CPU). I looked at the Prudencia Saez site and they use the word, lacquer, for all of their guitars--from the least xpensive (about $700) to the most expensive (about $1600--excluding the electronic models). Many companies use the word lacquer when the actual finish is CPU which is a different beast than lacquer.

As for doing the repair--unless the ding is the size of the Grand Canyon it might be best to leave it alone and make up an entertaining story about how it got there.

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 27 2015 7:32:22

Wayne Brown

Posts: 124
Joined: Oct. 22 2012
From: Huntersville, North Carolina, USA

RE: repair to laquer on back of guitar (in reply to parilla1936)

One way to test for lacquer is to wet a Q-tip with acetone and touch it to an inconspicuous place such as the back of the peghead or inside the slots. If the spot becomes tacky then it is most likely lacquer.

Lacquer dings are best repaired by drop filling with lacquer. If it is polyurethane, (acetone won't soften it) CA or superglue may be your choice for repair.

REPORT THIS POST AS INAPPROPRIATE | Date Mar. 27 2015 12:46:19