Acoustic Guitar Construction

They do not use Titebond --- Franklin Assembly 65

More info regarding gluing -- torriifed assemblies

I want to be careful since my source is passing on info from other techs.

First Martin indeed has two levels of torrifaction M1 which remains light in color and M2 which turns out dark.

Both of these are assembled with either Frankling 65 or HHG

Lastly -- and this is very interesting, an alternate to the above adhesives and used in the repair process.
Titebond lll --- here's the recommended process

clean the area on the top where the bridge is going to glued along with rubbing some water into it. Then apply glue to the bridge and top, allow it to sink in for a few minutes, and now glue the bridge down to the top

Good info, than you Ken.

I've found that I really have to be careful with the perimeter of the top - just yesterday I was attempting to trim the excess flush to the body and there was not a blade in the shop that could work that edge without chipping. No disasters, but there would have been had I continued. I tried first my beloved KMG binding channel system - chip (very unusual for that system), then a variety of sharp tools - 3 different spokeshaves, a few ibex planes, various scrapers - in the end I had to hand sand the overhang excess.

The wood is that fragile. I'm now very concerned about cutting binding channels. The KMG system has worked on every kind of wood I've tried until now, but this stuff is way chippier than redwood or any spruce I've used.

Any suggestions?

Any suggestions?

Fresh down spiral bit --- several coats of clear lacquer to toughen up the wood fibers.

I believe this chipping is indicative of the loss of near surface structural integrity caused by the baking process --- wonder if this new generation will around fifty years from now?

I'd be looking for wood that was processed more like Taylor's and Yamaha's versions -- more to stabilize for environment rather than trying to transforming the material to be 100 or what ever years old.

Sounds good. Thx.