If finished properly chalkboard paint would work just as a regular chalkboard would. Depending on the wall type you may need to sand the paint after every layer dries to create a smooth chalkboard-like surface on a wall.
form_title= Chalkboard Paint form_header= Create a new look every day with chalkboard paint. What will you be painting?*= _  Have you used chalkboard paint before?*= () Yes () No Do you want any other paint?*= () Yes () No
Chalkboard paint is specifically designed to be porous in order for the chalk to adhere to it. Using a sealer of any kind over it will result in loosing the porosity or tooth, rendering the chalkboard useless.