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Lacquer repair question
http://www-.luthiersforum.com/forum/viewtopic.php?f=10102&t=6597
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Author:  Dave Rector [ Tue May 09, 2006 3:20 am ]
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On the guitar that I posted pics of the other day, I have a crack in the lacquer about 1 to 1.5 inches long on the top in the lower bout area. I assume that it got bumped or something during our recent move, at least I didn't notice it before the move.

Question is, how does one go about repairing this type of thing? I thought about using a fine brush and applying a little lacquer thinner there to see if it would melt together. I hate to spray the whole top cause it's a pain to buff out around the bridge and FB.

Any help would be appreciated.

Author:  Dave Rector [ Tue May 09, 2006 6:51 am ]
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Bump.

Author:  Dave Anderson [ Tue May 09, 2006 7:06 am ]
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I would use some butyl cellasolve with a fine brush.It melts lacquer very well.Then wet sand and buff it in. As you said,thinner should work .This stuff is just a bit stronger.

Author:  Dave Rector [ Tue May 09, 2006 7:20 am ]
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Thanks Dave! I don't have any butyl cellusolve around and was trying to avoid another Stew Mac order for a month or two.

Maybe I'll just try it with the thinner and see if that works out ok.

Author:  Dave Anderson [ Tue May 09, 2006 7:26 am ]
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Hey Dave, I just checked at Stew mac and it looks like they don't carry it anymore. Probably wasn't selling enough I suppose.Anyways ,good luck with your repair.

Author:  Dave Rector [ Tue May 09, 2006 7:40 am ]
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Thanks bud! If you hear loud screams coming from NW of you you'll know it didn't work out as expected.

Author:  Michael Dale Payne [ Tue May 09, 2006 7:45 am ]
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worst comes to worst you can sand back and re-coat that area. Nitro will burn in just fine

Author:  Dave Rector [ Tue May 09, 2006 7:49 am ]
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Thanks Michael! I figured if nothing else works I would try that. Just trying to avoid making any bigger mess of it than I have to.

Author:  TonyKarol [ Tue May 09, 2006 8:26 am ]
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Ntiro will melt into previsouly sprayed areas, but dont bother rubbing ti out for a while, like 6 months. The new stuff will be way softer than the original for a while and if you only let it cure for 3-4 weeks then flat sand and buff I GUARANTEE it will sink, leave a witness line of sorts and look like a repaired area. I stripped and redid two backs because its the only way to get it right IMO.

Author:  Dave Rector [ Tue May 09, 2006 9:12 am ]
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Thanks for the info guys!

Todd, did you spray some of the Tamiya into a cup or something and brush it on?

Author:  RichB [ Tue May 09, 2006 12:22 pm ]
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Dave,

Here's a bit on Nitro cracks that's covered in Frets.com if you haven't already seen it...
http://www.frets.com/FRETSPages/Luthier/Technique/Finish/Lac quer/CheckRepair/checkfill.html

Rich

Author:  Dave Rector [ Tue May 09, 2006 11:59 pm ]
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Thanks for the ideas Todd and Rich!

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