What are the best techniques for applying chalk wall paint to achieve a smooth and durable finish?

To achieve a smooth and durable finish when applying chalk wall paint, it is best to start by properly preparing the surface by cleaning and sanding it. Apply the paint in thin, even coats using a high-quality brush or roller. Allow each coat to dry completely before applying the next one. Finally, consider sealing the painted surface with a clear topcoat for added durability.