DK - I understand and agree. Washing with Z7 will usually handle it.
Inter, yes, I agree.
In a prior post, I said I did not think the Charismas were causing the problem Inter reported. I wrote that while the Charismas were probably not causing the problem, the MF was curing the marring, or what I call smeariness, whereas the Charismas weren't.
An experiment I am conducting seems to confirm this theory and supports DK's ideas.
I have a <strong class='bbc'>brand new[/b] lower door panel that I received, direct from the dealer, still in its unopenned, factory taped packaging. Openned the packaging myself. It was flawless. [As an aside, I have never seen anything so beautiful on a dealer's lot. Shows you the harm that occures between the factory and when we take delivery. I mean, direct from the factory, the paint is UNBELIEVEABLE.]
I Dawned it (no clay), just for the heck of it, then Z1, Z2,Z6.
I keep the panel in my house, up high on a shelf near the ceiling (its hotter, better curing), and inverted (no dust). I take it down every couple days and Z2/Z6. This allows me to closely observe the process and effects under somewhat controlled conditions, at least more controlled than those affecting my car. I am also able to closely study the surface in a comfortable setting, with light I can control.
After a few coats, I observed the "smeariness." There is nothing terrible bad about it. In fact, I speculate it might be <em class='bbc'>good[/i] . It might represent a potential sacrificial layer, somewhat protecting the hardened layers underneth. Also, though I can see it on close inspection, on the vehicle or when viewing the panel from a distance of more than three feet, or if the angle is not just right, I cannot see the smeariness. But, there is definitely something there. It moves around when rubbed with a cotton towel. It picks up lines in what ever direction it is stroked.
I Z6ed with Charisma. The smeariness stayed. I Z6ed several times. It lessened, but was still there.
I applied another coat of Z2 and let it dry overnight. I removed it, and let it set another day. I observed the smeariness. I Z6ed with MF. It went away immediately. Now, this is not necessarily a good thing. I could feel the MF "grabing" the panel. I believe the millions of MF ends were scrubing the smeary material off the panel. While this is seemingly good, obviously, we don't want to remove TOO much of the Z.
Now, I have no doubt that if I used very, very thin coats of Z, the smeariness would be reduced, also.
I think that washing with Z7 handles the smeariness because in the washing and drying process the paint is rubbed a lot and the top, unbonded material that is smushing around is removed.
I will keep you informed of other results of the experiment. I had intended to put 10 coats of Z on the panel (matching the number I have on my car), then returning it to the dealer so he could put in on my car (replacing the one that got slightly damaged). Because damage to the existing panel is slight, I think I will keep the new panel for a while, in order to conduct more mad scientist experiements. It's easier to work on and inspect the panel in a warm house than bent over, outside -- usually at night (and, its been cold at night in LA, at least cold for us)!