Besides its matte finish, chalk paint differs from traditional paint in several other ways. One of the benefits is that it doesn't require any prep work—it can paint right over most clean, dry surfaces (expect for metal or shiny laminate), even if they're already painted.  Plus, because of its consistency, chalk paint is less likely to drip than regular paint. Chalk paint is water-based, so you can clean your brushes with soap and water rather than having to use mineral spirits.