Steve knight wrote:

All of my applications that have been glued have been out door
applications
with old left over scraps. Polyurethane simply let go.


the only want to get a decent bond (not great mind you) with poly is
fresh cut/sanded pieces dampen both sides and use gorilla. I found it
glued oily woods better. but the joints are not always stronger then
the wood.

If you want to bond IPE, it is epoxy time.

Wipe the surfaces with acetone, then scuff up the IPE surface with a
24 grit right angle sander, then wet out the surfaces with some
laminating epoxy which you let set until tacky, then butter on some
epoxy thickened with micro-balloons to the tacky surfaces.

Position pieces and WAIT.

I usually allow 48 hours minimum.

My epoxy joints don't fail, at least not yet.


SFWIW, I have found that micro-balloon thickened epoxy makes a
stronger joint than just straight epoxy.

YMMV.

Lew