by Bob Gramann » Tue Feb 05, 2019 11:14 am
It’s a low stress joint, but you never know what someone is going to do with the guitar. I used to glue down the tongues with plain old Elmer’s because it would release so easily with heat. But, I had a couple come up. So, I started using Titebond—it releases pretty easily with heat—and that problem went away. I don’t use HHG on the tongue because I want something that releases easier. I always glue to bare wood. If the nitro came loose from the wood and stuck to the glue when the tongue lifted, you’d have a mess to clean up. In the long run, I’ve never seen gluing to finish work well.
You have a lot more experience than me (working on build #130 and only sporadically do repairs), so you’ll have to weigh my opinion against that.