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  #1  
Old 07-02-2019, 06:08 PM
kavalakat kavalakat is offline
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Default What glue is this used for braces?

Does anyone know what glues is used here? (PICTURE attached)
Looks like super glue, but I think it should not be used on braces for guitar.
The area where the side tone brace is attached to main brace... thx
This is a Breedlove Pursuit Ex concert CE MY.

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Old 07-02-2019, 06:53 PM
mirwa mirwa is offline
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It looks like a bit of epoxy used to gap fill and glue

Steve
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Old 07-02-2019, 07:02 PM
kavalakat kavalakat is offline
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Thank you.. It is a new guitar so I just want to be sure it was not super glue..
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Old 07-02-2019, 08:29 PM
John Arnold John Arnold is offline
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IMHO, I would rather see super glue than epoxy in this application.
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Old 07-02-2019, 08:49 PM
kavalakat kavalakat is offline
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But I thought super glue is difficult to remove if any issues with braces...because it is so strong... Sorry I don't have much knowledge on this.. Thanks for your input..
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Old 07-02-2019, 10:51 PM
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Bruce Sexauer Bruce Sexauer is offline
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Both CA glue and epoxy are difficult to remove. But I consider CA a much better choice where acoustic efficiency is concerned. Glue clean up is just one of many considerations.
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Old 07-02-2019, 11:32 PM
kavalakat kavalakat is offline
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Thank you for the valuable input...
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Old 07-03-2019, 03:40 AM
mirwa mirwa is offline
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Epoxy is a good gap filling glue, so when people notch braces for other braces to fit or undercut the kerfing too much, then epoxy is utilised to fill that gap and provide a good solid bond

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Old 07-03-2019, 03:52 AM
kavalakat kavalakat is offline
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Oh.. got it.. That was clear.. Thanks
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Old 07-03-2019, 07:56 AM
redir redir is offline
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Are all the brace ends treated that way? It seems like they had the idea that dripping epoxy on the brace end will help keep it tacked down in defense of impact or something. IDK I'm just thinking out loud as to why that would be done. I have seen guitars with cloth patches at brace ends for what I presume to be that very reason.
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Old 07-03-2019, 11:14 AM
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Quote:
Originally Posted by mirwa View Post
Epoxy is a good gap filling glue, so when people notch braces for other braces to fit or undercut the kerfing too much, then epoxy is utilised to fill that gap and provide a good solid bond

Steve
Not in my world.
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Old 07-03-2019, 12:21 PM
charles Tauber charles Tauber is online now
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Quote:
Originally Posted by redir View Post
Are all the brace ends treated that way? It seems like they had the idea that dripping epoxy on the brace end will help keep it tacked down in defense of impact or something. IDK I'm just thinking out loud as to why that would be done. I have seen guitars with cloth patches at brace ends for what I presume to be that very reason.
It is a common practice in classical guitar construction to pit a drop of wood glue on the ends of the fan braces. I suspect on this guitar they attempted to do the same with epoxy.
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Old 07-03-2019, 12:22 PM
charles Tauber charles Tauber is online now
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Quote:
Originally Posted by Bruce Sexauer View Post
Not in my world.
Nor mine. If doesn’t fit it is discarded.
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Old 07-03-2019, 08:57 PM
redir redir is offline
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Quote:
Originally Posted by charles Tauber View Post
It is a common practice in classical guitar construction to pit a drop of wood glue on the ends of the fan braces. I suspect on this guitar they attempted to do the same with epoxy.
Interesting. I did not know that. And I have never done that but I have only built ten classical guitars and that was many years ago. I am endeavoring on building more now and I almost feel like it's starting all over again.
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Old 07-03-2019, 10:10 PM
printer2 printer2 is offline
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Maybe they used hotmelt.


Just kidding. On gap filling, in my RC aircraft days the odd mistake may be filled with micro-balloons (little hollow plastic spheres) and CA. With multiple joints on the ribs and with most of the wing glued up it is the more practical option. I did do one guitar body with mainly CA, did the back on with Titebond. Been five years and the CA is doing fine.
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