Chipping, also known as peeling, paint is a problem that can plague homeowners. Chipping paint is usually the result of an ill-prepared wall or excessive moisture. Failure to prime or clean the walls properly are good examples of ill-prepared wall. If you are experiencing chipping paint, you have some work to do to repair the damage. You cannot simply paint over the problem and expect it to go away. Unless you do things right, the problem will quickly return.
Scrape all loose paint off with a putty knife. Push the putty knife across the area in multiple directions to ensure you remove every last bit of loose paint.
Fill the depression left from the scraped-off paint with joint compound. Apply as a thin layer with your 6-inch taping knife. Allow to dry fully.
Sand the area, and run your hand across it. If it still feels lower than the surrounding wall, apply another thin coat of joint compound over the area. Allow this layer to dry fully, and sand smooth.
Clean the entire wall with a damp rag or sponge. This will remove any built-up dirt and leave the wall ready for painting.
Brush a high-quality primer over the area. Allow the primer to dry fully.
Apply two coats of paint over the newly primed area or the entire wall if you are repainting the whole wall. Allow each coat of paint to dry fully.
Do not just cover up chipped paint with another coat of paint. The paint will continue to peel up and cause the new coat of paint to peel.
Always apply joint compound over the scraped area. If you simply scrape and paint over the area, you will see the scraped area through the new coat of paint because it will be lower than the surrounding wall.