Painting quick rite tubes

Hello: I plan to paint 'Kitchen Ceiling' which was painted 'oil-based' pure white long ago and getting smoky/grayish in color. My question are: After cleaning entire ceiling with soap and water, (1) Should I paint/apply 'primer' before painting 'oil-based' pure white? If it's to be ideal, what sort of pirmer is recommendable? Since it's originally painted 'oil-based' pure white, should I use oil- based pure-white primer? Or, Without apply 'primer,' should I directly re-paint oil-based pure white paint purchased either from Home Depot or Lowes' or any other reputable paint-shops? Any other useful and helpful hints regarding re-painting Kitchen Ceiling would be greatly appreciated. Thanks,

Good evening, I am having a very similar problem... I looked online for information on how to paint the floor in one of my spare bedrooms where we have the Cat Liter Box, and it is OSB Board. Your website said that I needed to paint the OSB first with a Primer, and I did... It said to use a Acrylic latex stain blocking primer that will hide any stains on the OSB. This seals the paint and prevents any bleed-through, in which I did. Then it said to use Apply a top coat of oil-based paint in the color of your choice and allow it to dry. Repeat the process. In the end, you will have a beautifully painted OSB wall, roof or floor that should last a long time. I did all of this and my floor is soooooo sticky you cannot walk on it... what is the problem..? I used the Kiltz Primer, and it said that I could repaint it in 1 hour with another coat, and I did, and then I waited until the next day, into the evening in fact to put the Oil based topcoat on it, and it is not drying...? It is sooooo very sticky...? Help....! Read more: [url]http://www.doityourself.com/forum/painting-staining-all-interior-exterior-surfaces/428540-paint-still-sticky-after-week.html#ixzz38Fq0xgx6[/url]