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 Post subject: Removing old repair glue
PostPosted: Tue Jan 26, 2016 4:04 pm 
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Cocobolo
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Hi all, question for anyone who knows here, I had an Epiphone guitar come in with a broken headstock and of course the customer had to have a shot at fixing it himself before he called. It's a fairly clean break but both sections are covered in Gorilla ca. Any ideas for cleaning this off other than painstakingly scraping with a blade? Thanks in advance


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PostPosted: Tue Jan 26, 2016 6:07 pm 
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Joined: Tue Mar 19, 2013 3:34 pm
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First name: Bob
Last Name: Russell
State: Michigan USA
Focus: Repair
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And that is why I don't use CA glue on guitars...

I don' know of anything that will actually remove it and even if there was that stuff soaks down into the wood turning wood into almost plastic like substance so any "wood" glue will not work like it is suppose to.

I am not sure but you may have to cut a scarf joint and basically cut the glue line out of it. The good thing is that it appears to be painted black so you should be able to finish it and make a nearly invisible repair.

Maybe someone else knows more about ca than I do since I don't use except for very limited things.

Lets hope someone has the magic trick to help you.

Bob



These users thanked the author RusRob for the post: tysam (Tue Jan 26, 2016 6:14 pm)
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PostPosted: Tue Jan 26, 2016 10:29 pm 
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Bob Smith's industries un-cure works. I have used this. Acetone works somewhat. Other brands make debonders too.

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These users thanked the author Shaw for the post: tysam (Wed Jan 27, 2016 12:05 am)
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PostPosted: Tue Jan 26, 2016 10:39 pm 
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I also would never use gorilla brand CA for guitar work. It has some type of rubber in it for reinforcement. It's flexible on purpose.

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These users thanked the author Shaw for the post: tysam (Wed Jan 27, 2016 12:05 am)
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PostPosted: Wed Jan 27, 2016 6:39 am 
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We would turn this one away and here's why:

1) Someone else has contaminated the joint making a clean wood-to-wood bond now impossible...
2) The level of effort to cut out and replace the contaminated area would not work economically speaking for the client and likely us as well. The repair would approach or exceed the value of the instrument.
3) The number one reason why some Luthiers never make a good, viable commercial go at the business - they don't understand that at times it's impossible to be everything to everyone.... It's OK to take a pass on a job that will lose you money OR that from the outset decent results can't be guaranteed.

Pay attention to my number three - it's the one that bites Luthiers frequently and can be countered but it starts with each of us and our ability to do what it takes to live to play another day. And yes I am speaking of judgement here.



These users thanked the author Hesh for the post (total 3): CraigG (Fri Jan 29, 2016 8:58 am) • Lonnie J Barber (Wed Jan 27, 2016 6:39 pm) • tysam (Wed Jan 27, 2016 11:43 am)
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PostPosted: Thu Jan 28, 2016 5:16 pm 
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Anytime its been " Repaired" by the owner , Price goes way up fo sho ..

Even if I could clean it and reattach it , there would be NO WARRANTY suggested implied even thunked about and the customer would Sign Off On That !

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These users thanked the author WudWerkr for the post: tysam (Fri Jan 29, 2016 1:46 am)
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PostPosted: Fri Jan 29, 2016 1:45 am 
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Thanks for the answers all......you helped confirm what I was thinking and therefore the job was shelved. Cost would have been close to what the guitar was worth with the cleanup and no guarantee.Honestly seems to have paid off and at least I got two setups for the client out of the contact. Thanks again

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