What Can Superman's IMP do to Iceman?

The title really speaks for itself. My friend thinks superman's IMP can trump anything and this will prove him wrong (if I'm right). Also, name some other character that It wouldn't do too much to, if you can.

It would shatter him, but hed reform right back up

Probably temporarily disperse him then he'd just reform.

Superman doesnt have an "IMP" technically.

Well the impact would disperse icemans body to incredible distances, I guess his reformation would be possible but difficult considering

really?

Yeah. Flash uses the IMP.

@sodamyat: I knew that, but I thought superman has and is fast enough to do it too

Iceman will reform. He is essentially immune to physical damage at this point. It would temporarily incapacitate him, but that's it. It will not keep Bobby down.