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I have a Seagull Mosiac with mahogany back that has an impact crack running from the edge of the upper bout for 6 inches along the grain. Using a flashlight, it's apparent that the crack goes all the way through.

 

Any suggestions on how best to have this fixed? Can it be done  by myself?

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Comment by Jud Hair on November 10, 2011 at 6:20am

Mike ... glad you found a remedy.  It's true that if the crack weren't caused by lack of humidity then humidifying wouldn't help close it.  Was your crack caused by a "ding"?  If so, then in all probability, the wood is already properly humidified and therefore won't expand to close the crack.  Good luck!

Comment by Mike Hunsche on November 9, 2011 at 6:58pm

I researched this problem on the web, and after humidifying the guitar for a few days (without seeing any improvement) I took the recommendation of one of the posts I ran across.

 

1. Get a good carpenters glue. Use one teaspoon with a few drops of vinegar to dilute the glue to make it flow more easily. Why vinegar? I don't have the slightest clue, and I couldn't find anything on the net to inform me. Perhaps the acidity helps?

 

2. Mix glue and viegar. Then apply into crack across the grain making sure glue gets into crack nicely.

 

3. Since my crack was a through and through, I could tell the glue was worked through when I saw it appear inside the guitar.

 

4. Wipe down excess glue on guitar.

 

5. Let set for 24 hours.

 

6. Sand with 1500 grit sandpaper and refinish. This I haven't done, although I'm OK with the sanding part; it's the finishing that gives me pause.

 

So, so far so good!

Comment by chris mirabile on November 9, 2011 at 2:00pm

i had a crack in my martin jc 16re only 14 months old martinfixed it by just glueing .still sounds good but still see crevice. if u look at it right .my point is this process is kind of cheap but effective.

Comment by Jud Hair on November 2, 2011 at 11:47am

Mike ... take a look at this youtube from Taylor demonstrating an amazing recovery from two serious cracks using nothing more than simple re-humidification. 

 

http://www.youtube.com/watch?v=tB8tELj43RE

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