Which process is important before applying a new coat of paint?

Cleaning the surface is a crucial step before applying a new coat of paint. This process ensures that the paint adheres properly to the substrate, providing a smooth and durable finish. Dirt, dust, grease, and other contaminants can prevent paint from bonding effectively, leading to issues such as peeling, chipping, or an uneven appearance once dry. Proper cleaning often involves washing the surface with a suitable detergent, rinsing, and allowing it to dry completely before painting.

Choosing any color, using a wide brush, or ignoring existing texture do not directly influence the quality of the paint application in the same way. While color selection is personal and aesthetic, and brush type can affect application technique, they do not replace the fundamental necessity of surface preparation. Neglecting to clean the surface could result in significant issues with the integrity and look of the finished project.