And epoxy binds to aluminum just fine ? Epoxy is weird. What solid material does it NOT bond to ?

Polyethylene, like they use in food containers. Virtually nothing sticks to it unless specifically designed.

It does not bond to polypropylene and other low surface energy plastics

Terminology question - I understood those to be "high-energy" surfaces, because the chains are strongly bound. Is it a typo, or am I wrong?

Teflon.

Yummy, my favorite!

Actually should be mostly fine since it’s pretty inert, unless you eat the stuff used to make it.