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  #1  
Old 09-12-2017, 03:36 PM
bogdan101 bogdan101 is offline
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Default What do you think of this crack?

https://flic.kr/p/Y4zkyN
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  #2  
Old 09-12-2017, 04:25 PM
Rodger Knox Rodger Knox is offline
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Looks like a finish crack to me, not into the wood.
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Old 09-12-2017, 05:34 PM
bogdan101 bogdan101 is offline
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Thanks, that's what I think too; this is a Blueridge BR 180A I just got as used/blemished. I'm not sure what the finish on it is though. Probably not nitro, or they would advertise it. Can a poly finish crack like that?
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Old 09-12-2017, 06:22 PM
mirwa mirwa is offline
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It looks like a lacquer crack.

Get some isopropyl alcohol (craft shop), put a mirror inside the guitar and lightly spray the alcohol over the ""crack", if its a body crack then you will see a wet line appear inside your guitar.

Steve
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Old 09-13-2017, 08:44 AM
Earl49 Earl49 is offline
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I am reluctant to disagree with Steve -- who certainly knows WAY more about guitar building and repairs than me -- but this looks like a check in the lacquer, similar to "cold checking" cracks. Nitrocellulose lacquer dissolves in alcohol (don't ask me how I learned that ). A poly finish will be impervious to alcohol, but not nitro. Proceed with caution here.....

That crack appears to be simply cosmetic, no worries.
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Old 09-13-2017, 05:27 PM
Dave Abrahamson Dave Abrahamson is offline
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Cracks generally follow the grain lines. That one hooks a right...right across the grain. +1 on the finish crack.
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Last edited by Dave Abrahamson; 09-13-2017 at 05:28 PM. Reason: Spelling
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  #7  
Old 09-13-2017, 06:11 PM
mirwa mirwa is offline
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Quote:
Originally Posted by Earl49 View Post
Nitrocellulose lacquer dissolves in alcohol (don't ask me how I learned that ). A poly finish will be impervious to alcohol, but not nitro. Proceed with caution here.....
You are correct, I should possibly have clarified a bit further earlier, do not rub the surface after applying the mist of alcohol spray (it may be nitro), simple spray mist on the top and see if it penetrates, allow it to evaporate off the top. Leave it for 30 minutes before touching, repolishing the surface.

Totally good call.

Steve
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Old 09-14-2017, 02:42 PM
Henning Henning is offline
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When I bought my first steel string guitar I had some feeling that the lacquer could eventually crack. So when I got it back after fret job, I asked about that matter. The technician then told me: "if it cracks itīs good for it". Supposedly he meant thereby that it would give the wood better opportunity to "breath". Whatever benefit that might mean, because the purpose of the lacquer is to protect the wood and eventually give it luster too.
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  #9  
Old 09-14-2017, 03:02 PM
ocmcook ocmcook is offline
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its a nice crack as cracks go, but i have seen better.
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