As a chemist, I somewhat agree. If something was becoming not ionized, I'd say deionization. But generally I'd go with non-ionized.

Edit: I was pretty tired when I posted the original message. But after looking back, if something was non-ionized, I'd probably just say "neutral", since it probably doesn't have a charge.

While ionized particles stick to other things, they do not really stick together - at least if they are the same type of particles or rather carry the same type of charge, respectively.

The chemist will pronounce it un-ionized, while the plumber will pronounce it union-ized

Are you a scientist or a plumber?

Unionized means particles without charge, i.e. particles with same amount of electrons and protons.

Deionized is something that once had ions and through some process those ions lost their charge.

Correct me if I'm wrong. I am not a chemist

Is the UA as good as the IBEW? I mean, I guess you're only one so you can't compare yourself to the other.

Relevant