do NOT use oil base, its a waste of money. Get you some cheap a$$ interior latex flat to prime with I dont care if its ceiling white, it will adhere just fine THEN you may topcoat with a better quality latex satin or matte. We love BEHR paint it holds up just fine. you can roll it or spray it. If rolling use a thin nap roller. We have an 18" roller and it works great and cover alot of area, BUT it will wear you out!