Paint Concrete So it Sticks
If you’ve just painted your garage floor and it’s peeling, here’s a trick that makes paint on concrete really stick.
When you paint concrete, you can keep the paint from peeling off by washing the floor first with warm water. Then rinse and let it dry thoroughly for a least a day. Using a clean paint brush, apply a coat of white vinegar as a pre-paint primer. Once it dries, it will increase the bond, and your paint will hold and last much longer. This works on most things concrete, and benefits many other types of surfaces, too, such as metal, wood, or plastic.