There are three layers on the door skin (or at least that's what I call it) The inner door skin or door panel is VERY curvy on a civic. So much so that matting it is a pain. There is also all of the wiring to contend with and the door lock mechanism. The spray was on sale so I figured I would give it a shot.
I think the next time I pull the doors apart (they need some tweaking), I'll add another layer of matt to the skin over the spray.
I'm excited, my 7996 should be here this week!!!