The prefix “un-” is really two prefixes. One is added to verbs to indicate reversal; the other is added to adjectives to indicate the opposite of the positive form of the adjective.

The addition of non- has the sense of “absence or lack of.” It does not matter whether or not the platform may be stabilized in future. You want to describe a platform that does not have the stabilization now. It is “nonstabilized.” It lacks stabilization.

More about “un-” and “non-”: http://bottomlineenglish.com/when-to-use-the-negative-prefixes-un-and-non

To the best of my understanding, those platforms should be “unstabilized,” as they have the ability to be stabilized later. Much like “unhappy,” where I can be happy later – but nonhappy doesn’t really work well as it indicates perpetual misery.

So, should it be “unstabilized” or “nonstabilized?”

Any help with the office argument of the day would be greatly appreciated!

Although both “un” and “non” mean “not,” they are not interchangeable. For example, in such words as “nonsense,” non-fiction,” “non-alcoholic,” “non-profit,” “non-descript,” “non-compliance,” etc., we cannot change “non” to “un.” By the same token, we cannot change “un” to “non” in such words as those listed below:
“unconstitutional,” unkind,” “unkempt,” “unknown,” etc. Do you see what I mean?