Tried filling some chips a while back using touch up paint and clear coat. Great match but left an unsatisfactory halo effect after clear coat and i ended up going through to what looked like original Grey primer when rubbing back prior to polishing. In an effort to rectify i bought spray paint and clear coat from same source and spent ages last week re-finishing. This involved sanding back, waxing surrounding area to prevent overspray sticking, spraying 2 coats of paint and 2 clear coat through a hole torn in paper in an effort to avoid any lines from masking. Initially this looked very promising BUT, having waited a few days for clear coat to harden, today tried sanding back the edges with various grades of wet and dry and rubbing compound to blend in the repairs then polishing with DA leading to a finish which is equally as bad as before. Whatever i do seems to result in a sort of very obvious halo and any effort to remove this effect leads eventually to exposure of the base Grey primer. I reckon a light coat of paint would cover it but can't do that without additional clear coat and more rubbing back which is a vicious circle.
I'm out of ideas; anyone else got any beyond a total respray??
Here's one after sanding but before DA
And again after DA