You can re-coat your paint after four to six hours of your first coat dried. Actually, it depends on the paint that you have used. If your paint is water-based, you have to wait three hours after your first coat. And if your preference is oil-based or primer, you have to wait 24 hours. Because oil-based paint dries after 6-8 hours to touch. And it will be ready to recoat in 24 hours. Latex paint dries to the touch in an hour, and you can recoat in 4 hours.