I think just yellow glue would be insufficient as it is not outdoor nor
waterproof.
- shear strength is needed in the repair that the glue may not be able to
provide.

I would suggest epoxy, as it is waterproof, and can give the strength
needed.
Depending on the break, consider adding a spline or biscuit to ensure shear
strength is added back.
This might make a nearly invisible repair.

The son who built the chair, may have a recommendation. He may even still
have the pattern and be able to produce a new arm.



"Prof Wonmug" wrote in message
...
My wife has an Adirondack chair her son made for her. It's been
sitting in the back yard for years. I tried to get her to let me paint
it or at least seal it, but she wanted it to weather.

Well, not it's broken. A clumbsy relative fell on it and broke one of
the arms. It's a very clean break. I want to glue it back together for
whatever life it has left.

Is yellow glue as good as it gets for this or it there something
better? It's made of redwood.