If you are interested in painting over painted furniture without having to spend time sanding, you have a few options. While many people recommend sanding your furniture anyway, it can be messy and consume a great deal of time. As an alternative, you can purchase a special paint that is designed to adhere to any other type of paint. The other option that you have is to purchase a special bonding primer. Apply a coat of this primer to the surface of the paint and allow it to dry. Then you can paint right over it.