Do not use Titebond II. It is one of the worst choices for any kind of guitar work other than assembling purflings. Titebond Original dries harder and is a better choice. Also ignore the chorus that often appears and says that hot hide glue is always the best choice. It's not for this repair, because it won't adhere well to the original glue used to join the two halves of the top. Nothing actually adheres well to cured aliphatic resin glue, which is what was used (Titebond is an aliphatic), but in practice it will adhere OK to itself.
But really, you shouldn't be doing this yourself. Wait until you can pay for a competent repair, and get references for the repairer's work on cracks--there are lots of hacks out there. It's a problematic repair because of its location at the top's centerline. It should be closed by humidifying, then glued working the glue into the crack (not so simple, since it's now closed). Then it should be cleated since you won't get really good glue adhesion.
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Last edited by Howard Klepper; 04-27-2015 at 11:32 AM.
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