well, I am sure that powdercoating and rust aren't issues here - its going on a CF frame (I said it was off topic. But you guys, of all of the forums, are the resourceful ones...). I tried the stuff on an old aluminum fork today. It isn't cured all the way yet, and still feels, um, kinda sticky, but it is bonding like the devil to my soul after 6 hours. I can't get my thumbnail through it. I abraded the fork with 100grit sandpaper before I shot it, to see if it covers scratches...it doesn't. It doesn't go on perfectly smoothly, either. There's a faint bumpy texture to it. I'm gonna work it over after it cures all the way.
My inspiration for all this is IBIS. I have a Mojo Carbon that has a really sweet rubberized paint surface; it takes branches and rock hits in stride, isn't slippery when wet, and looks pretty cool, too.
I'd love to have such a useful surface on everyday bikes.