I have West System (and also under the Gougeon Bros. name) test pieces of
spruce-to-spruce and spruce-to-various plywoods that I have made over the
past 28 years. When the FAA guy did the precover inspection (yes that
was quite a few years ago) on my KR2 he could not get a test piece joint
to break closer than 1/16 inch from the glue joint. He tested them in
shear and peel. The West epoxy penetrates and actually seems to
strengthen the wood close to the joint. I would like to know how you
could get a better glue joint than that. Well, I guess resorcinol
handles heat better.
Dick H
