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Board index » Instrument Restoration and Repair

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rmack
 Post subject: Brace Repair
PostPosted: Fri Jun 23, 2023 1:43 pm 
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Walnut
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First name: Ron
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Good afternoon,

It's been a while since I've posted on the forum. I hope everyone is doing well.

I built a Weissenborn style guitar well over a decade ago, but did a few things incorrectly.

Also, the fish glue I used failed mainly on the back, but also a couple of braces on the top. When I removed the some of the braces I didn't remove the braces cleanly, so some of the mahogany is on the braces.

I'm not sure how I should approach this problem. All suggestions would be appreciated.


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Barry Daniels
 Post subject: Re: Brace Repair
PostPosted: Fri Jun 23, 2023 4:49 pm 
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Brazilian Rosewood
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Clean up (sand, scrape or plane) the joint's surfaces, both on the bottom of the braces and on the back. Then re-glue.

While you are in there you might want to grab ahold of the other braces and give a good twist to make sure they don't come loose too.


These users thanked the author Barry Daniels for the post (total 2): Kbore (Fri Jul 28, 2023 3:30 pm) • Smylight (Fri Jun 23, 2023 10:09 pm)
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rmack
 Post subject: Re: Brace Repair
PostPosted: Fri Jun 23, 2023 8:11 pm 
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Walnut
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Barry Daniels wrote:
Clean up (sand, scrape or plane) the joint's surfaces, both on the bottom of the braces and on the back. Then re-glue.

While you are in there you might want to grab ahold of the other braces and give a good twist to make sure they don't come loose too.



Thank you. Very much appreciate it.
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Smylight
 Post subject: Re: Brace Repair
PostPosted: Fri Jun 23, 2023 10:12 pm 
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I remember reading here about fish having the same properties as HHG as far as being able to reactivate with the application of fresh glue. Anyone with experience on the subject?


Pierre
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Hesh
 Post subject: Re: Brace Repair
PostPosted: Sat Jun 24, 2023 3:41 am 
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Old Growth Brazilian Rosewood
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This is another example of fish glue failures and that should be pointed out.

Guitars are not always kept in ideal environments.... an understatement and this is why we don't use fish glue.

I'd use Titebond original for the repairs.

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These users thanked the author Hesh for the post (total 2): Kbore (Fri Jul 28, 2023 3:31 pm) • rmack (Sun Jun 25, 2023 9:43 pm)
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Lou Thier
 Post subject: Re: Brace Repair
PostPosted: Mon Jun 26, 2023 3:41 pm 
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Hesh wrote:
This is another example of fish glue failures and that should be pointed out.

Guitars are not always kept in ideal environments.... an understatement and this is why we don't use fish glue.

I'd use Titebond original for the repairs.

Amen


Sent from my iPhone using Tapatalk


These users thanked the author Lou Thier for the post: Hesh (Mon Jun 26, 2023 10:53 pm)
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jfmckenna
 Post subject: Re: Brace Repair
PostPosted: Wed Jun 28, 2023 3:36 pm 
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Brazilian Rosewood
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How did the fish glue fail? Did it unglue itself due to high humidity?

It's hard to see how thick that mahogany is on the braces but what you might be able to do is use a very sharp chisel and try to remove it with one clean shot then you can glue it back in place.
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rmack
 Post subject: Re: Brace Repair
PostPosted: Sat Jul 01, 2023 12:51 pm 
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Walnut
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First name: Ron
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jfmckenna wrote:
How did the fish glue fail? Did it unglue itself due to high humidity?

It's hard to see how thick that mahogany is on the braces but what you might be able to do is use a very sharp chisel and try to remove it with one clean shot then you can glue it back in place.


Hi,
Sorry everyone for the delayed response, but I had to replace my keyboard. Thanks to everyone that replied.

The mahogony isn't very thick. I remember the glue failing shortly after completing the build.
I'm using Titebond this time around.


These users thanked the author rmack for the post: jfmckenna (Wed Jul 05, 2023 1:32 pm)
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rmack
 Post subject: Re: Brace Repair
PostPosted: Sat Jul 01, 2023 12:52 pm 
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Walnut
Walnut

Joined: Sat Jan 16, 2021 7:10 pm
Posts: 4
First name: Ron
Last Name: Mack
City: Brooklyn
State: NY
Zip/Postal Code: 11226
Country: USA
Focus: Build
Status: Amateur
Hesh wrote:
This is another example of fish glue failures and that should be pointed out.

Guitars are not always kept in ideal environments.... an understatement and this is why we don't use fish glue.

I'd use Titebond original for the repairs.



I'm using Titebond this time around. for sure. Thank you.


These users thanked the author rmack for the post: Hesh (Sun Jul 02, 2023 4:19 am)
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