this post was submitted on 14 Jul 2024
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This. But I'd use hide glue and then after filling the crack with the glue, use a suction cup to pull it through both sides
Wood glue === hide glue
Traditionally, anyways.
Edit: this relationship is actually interesting and complex.
PVA is more commonly known as wood glue nowadays. But hide and PVA are both commonly used.
There are also liquid hide glues that are marketed as wood glue.
It's a messy relationship these days lol. I just looked into it!
There's variants and subvariants too. There's fish glue, which is close to hide glue. There's also waterproof versions of PVA glues. Not to mention PU glues and epoxies. Though, besides PVA and hide and fish, the rest are rarely used for guitars. But traditionally, only hide glue is acceptable. Not really rightfully so IMO, but it is what it is.
I thought I knew a lot about glue through lutherie.
🤯
Use titebond 1
Absolutely not.
Titebond expands. Hide glue/wood glue draws the wood fibers together..
In this instance we want our adhesive to draw our wood fibers together.
There is no more amateur mistake you could make than using krazy glue, tite bond, or any other polyurethane-based adhesive, in a situation such as this.
This point will be drilled into your head should you ever study guitar repair under a Luthier. There are two kinds of glues, and two gluing situations.
Edit: you can downvote if you want I'm literally making a repair like this ~10 times a year for a Luthier.
You're dead wrong. And you'll fuck up a guitar.
I also should have noted I fixed this exact same issue with hide glue, hence why I recommended it. It's not hard to find and will do the job correctly, like @foggy said
Some liquid hide glues are marketed as wood glue. That's what I was referring to when Id said wood and hide glue are the same. We were referring to the same thing. They're not always the same thing though.
It's confusing.
But you could use any wood glue, you should use hide glue, some wood glue is hide glue.
In my world, hide glue and wood glue are the same thing. In a proper carpenter's world, that is not the case. I only work on guitars/ukuleles
Gotcha. Semantics lol. My understanding is if two pieces of wood used to be the same piece of wood (crack or break repair) use hide glue. If they've always been different pieces of wood to use titebond/pva wood glue.
That is what the luthier I studied with taught me as well.
Sometimes, if the two pieces of wood don't fit back together well enough, your unfortunate option is to sand them both down and use polyurethane. Which is why I would heavily advise against breaking the piece off! It's already snug! :)
Even Taylor guitars uses titebond. I used titebond 1 on my neck thru builds and they're fine.
You're confidently incorrect.
And annoying as fuck.
This is where I block you.
plays my titebond glued guitar