Dmath -
Welcome to the Forum !
Is the Coating completely - Cured - ??? This is different from Dry...
If this is on a door - edge - only, there is very little paint on all edges and of course, very little of the Coating on that edge..
I can`t really tell from the picture so I am assuming that the door was opened, and the edge hit the white car, and paint was transferred..
Sometimes, in cases like this, the paint is just stuck on top and can be removed with some solvent and a sharp pointed Q-tip. If I was doing this, I would of course, try some mild cleaning agent first..
Sometimes, it has to be polished off or compounded off, depending on how hard the "rub" was.. Like when someone with a white car backs into your black car and leaves a big white paint transfer on your bumper..
In any event, in my experience, the amount of your Coating on the edge is so little, that as long as you are careful how you remove it, the edge will not be impacted by possibly not having a tiny bit of the Coating gone..
In decades of doing this I have never run across any Door edge that needed any more than a quick, extremely light pass with the machine using nothing aggressive and it was good..
This is one of the reasons when I get a clear bra applied to my personal vehicles, I always have the Installer apply a thin strip around all door edges..
Good luck with this !
Dan F