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    Guitar and Hide Glue

    If you want to get sucked into some fabulous woodworking videos, take a look at this one as an example of the kind of work the guys at Stewart MacDonald do. They are amazing. I've probably watched them repair 20 guitars. It's addicting.


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    Re: Guitar and Hide Glue

    He makes repairs look easy! People have had problems with the Titebond Hide Glue setting up hard. Makes me wonder if they were using old glue? I use a hair dryer to heat up the pieces and it buys enough time to use regular hide glue. I'm sure the question will come up about why hide glue and there are two good reasons...Repairability and heat tolerance. Regular AR/PVA wood glue joints can't be repaired without removing all the old glue. HHG will stick to itself. Regular AR/PVA glues soften slightly at fairly low hot temps (~150f). People do stupid stuff like leaving guitars in hot attics and cars in the summer. Under the stress from strings, that joint can fail unless you loosen the strings which nobody does.

    I don't know if you've seen this but David Collins at A2 Guitars in Ann Arbor has an excellent diy jig for making these repairs. Detailed discussion here: http://fretsnet.ning.com/forum/topic...-the-plans-for

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    Re: Guitar and Hide Glue

    I have a friend in Alabama who repairs violins, cellos, and bass viols. He has had some that were almost toothpicks handed to him to repair.

    Usually it comes out of his shop better than before it was injured and you would need a microscope to find any cracks.

    He has always used hide glue.

    http://mwstanton.com/restoration%20and%20repair.htm



    One machine can do the work of 50 ordinary men. No machine can do the work of one extraordinary man." -Elbert Hubbard

    WWFD

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    Re: Guitar and Hide Glue

    Since I made this post, I've spent several hours watching the Stew Mac YouTube channel. Those guys are amazing. Precision woodworking at its finest.

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    Re: Guitar and Hide Glue

    People have had problems with the Titebond Hide Glue setting up hard. Makes me wonder if they were using old glue? I use a hair dryer to heat up the pieces and it buys enough time to use regular hide glue. I'm sure the question will come up about why hide glue and there are two good reasons...

    Mark when I watch Dan do the repair I have to scratch my head and wonder? Why take the chance on "premixed glue" for a repair?

    Any woodworker can mix their own glue that will remain liquid by using a simple recipe below:

    https://bjornhideglue.com/hide-glue-info/hide-glue-instructions/

    Don't bother with urea if you are a little lazy like me. Go to your kitchen and get some salt. It works equally as well. Don't mix up a quart just size it down to whats needed and measure.

    Like you Mark I do heat things up in the dead of winter. It does give you extra time but a little salt will extend the time much longer and not degrade the joint.


    After fitting all of the lower chair parts, it is a challenge to glue it all up without frustration. Problem solved with a little salt.









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    Re: Guitar and Hide Glue

    Here's a good idea for using small amounts of hide glue.

    https://youtu.be/Zgse00bjxAg?t=341

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    Re: Guitar and Hide Glue

    Quote Originally Posted by patlaw View Post
    Here's a good idea for using small amounts of hide glue.

    https://youtu.be/Zgse00bjxAg?t=341
    Mike
    Just watching that makes me wonder??

    "Having the glue in a pot degrades it" What?

    If he knew what he was talking about he would realize its heating over 180f that degrades it not constant heat below that mark.

    Eugene Thordahl and Pat Edwards discourage the use of microwave heating of the glue.

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    Re: Guitar and Hide Glue

    Quote Originally Posted by danmart77 View Post
    Mike
    Just watching that makes me wonder??

    "Having the glue in a pot degrades it" What?

    If he knew what he was talking about he would realize its heating over 180f that degrades it not constant heat below that mark.

    Eugene Thordahl and Pat Edwards discourage the use of microwave heating of the glue.
    I think he was referring to the typical heat/cool/add water/heat/cool/add water/heat/cool/add water cycles seen when using a large volume of glue in a pot over the course of weeks. I've seen the warnings about going over 160f but don't remember seeing any time mentioned. I wonder for the few seconds the cold glue spends in the microwave and the fact that he holds the pyrex beaker with his bare hands that the water is really "close to boiling"? Another thing you may be overlooking is that the hot water in a water bath is always hotter than the glue floating on top of the water for a while. Knowing who he is, I imagine he wouldn't be doing it if it resulted in less than an acceptable result.
    If you're not aware, Frank is very well respected and revered in the stringed instrument repair and small machine shop worlds. Imagine a guitar maker saying Sam Maloof's method of attaching a rocker seat to the front legs is wrong or that Krenoff didn't know what he was doing making wooden planes.
    Last edited by Tarhead; 02-11-2019 at 08:03 PM.

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    Re: Guitar and Hide Glue

    http://woodtreks.com/animal-protein-...-history/1549/

    Mark
    Point well taken. Maybe this is what works for Frank.

    Your leap to Maloof and James Krenov and Frank Ford's glue technique makes no sense to me.

    later

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    Re: Guitar and Hide Glue

    Sorry! I hit send too soon!
    It should say "Imagine a guitar maker saying...etc. Calling out Frank for his technique similar.

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