Acoustic Guitar Construction in the small shop -- Kenneth Michael Guitars LLC

Information, ideas and help for those constructing scratch built acoustic guitars or acoustic guitar kits - © 2017
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The purpose of this forum site is to provide a means for acoustic guitar makers at all skill levels to forward information, share experience and ask questions if project obstacles are encountered. We ask that egos be left at the door – the highest levels of courtesy and respect are to be shown to all. Posts containing disparaging comments will be removed. The “Acoustic Guitar Construction Forum” is owned by Kenneth Michael Guitars and is copy protected. Direct links to luthier suppliers are not permitted and will be edited.



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PostPosted: Mon Feb 05, 2018 3:39 pm 
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Joined: Mon Dec 19, 2011 4:19 pm
Posts: 2248
As I have been spraying the current OM build with nitro lacquer, I've exposed a very thin glue line between the sapele sides and the walnut binding. It is obviously in places with the joint was not perfect as this line does not show the full length of each seam, but starts and stops in about 5 places, some as long as 3 or 4 inches. Against the other woods, it looks like a white line.
I used Titebond and glued this up last summer when the weather was actually quite hot. I have never had this happen before. This is the second guitar using the sapele, but on the other guitar I used maple bindings, no glue line shows.

There is nothing I can do about it now, but it is a bit disappointing. Have any of you guys experienced this with Titebond, or any other adhesive?


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PostPosted: Mon Feb 05, 2018 7:52 pm 
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Joined: Fri Dec 23, 2011 8:33 pm
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Location: Seattle
I have had glue lines with LMI instrument glue and unfortunately in that case it fluoresces under a black light. Just right for the stage. Fish glue, titebond hide glue and hide glue to not show through as white.

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PostPosted: Mon Feb 05, 2018 8:44 pm 
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I never had that happen with the old LMI white instrument glue, and I bought one bottle of the newer yellow stuff and that was okay too for me,
but the last 3 or 4 guitars I've just used regular titebond, never had this before.
I have fish glue, but I don't like the idea that it softens with moisture. Is there any issue you think using fish glue on the bindings?


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PostPosted: Mon Feb 05, 2018 8:54 pm 
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Joined: Fri Dec 23, 2011 8:33 pm
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Location: Seattle
fish glue on bindings is great. It may soften with moisture but unless the guitar is underwater the joint will not get any moisture in it. It softening with moisture is a plus as you can repair a joint. I also use the titbond hide glue. It gets a worse name than it deserves, maybe I would not use it for an x-brace but it will quite happily hold the bindings in. I used it for my my entire third guitar before I was told that it was bad for guitars. That guitar is still happily holding together.

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PostPosted: Mon Feb 05, 2018 9:49 pm 
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Thanks for the input John.
My next guitar is going to be a special one for my tenth anniversary building, so I don't want to have glue lines showing.


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PostPosted: Mon Feb 05, 2018 11:40 pm 
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Joined: Fri Dec 23, 2011 8:33 pm
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Location: Seattle
Kevin in California wrote:
Thanks for the input John.
My next guitar is going to be a special one for my tenth anniversary building, so I don't want to have glue lines showing.


I should look at my dates as we started close to the same time:)

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PostPosted: Tue Feb 06, 2018 1:12 pm 
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Joined: Sun Dec 30, 2012 1:20 pm
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Location: Arnhem area, the Netherlands
Hey Kevin,
Bummer. I cannot help, 'cause I did have this issue before. maybe it has to do with the not snug fitting of the binding.
Stuggling with these things comes with our not industiral way of building I guess.
Maybe comforting: At the moment I am dealing with glueing on a torrified top.

Herman


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PostPosted: Tue Feb 06, 2018 1:22 pm 
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Joined: Mon Dec 19, 2011 4:19 pm
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Yeah Herman I've seen your posts on that issue. That is indeed a bummer and sorry you are having to deal with it.
My problem is alot less noticable, so I should not complain.

John, Yeah I remember you and I joined Bill's forum about the same time, I was in early 2008, started my first kit around February and finished the guitar that October.
Now I'm completing the 14th. I think you are ahead of me though.


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