I have soot on the ceiling in my kitchen from burning candles and I would like to paint. What kind of paint do I use and/or do I have to clean this first with a special solvent because it seems to have seeped through the last paint job.

I have a new fiberglass door and the window trim on it is polypropylene. The stain is not covering the trim the same as the door. I have primered the trim and the door was pre-primered by manufacturer. Now I want to change the entire color on the door because

Can nail holes be re-filled after they have already been painted?