What is the primary goal when preparing a surface for painting?

The primary goal of preparing a surface for painting is to ensure a smooth and clean surface. A properly prepared surface enhances the overall appearance and durability of the paint job, as it allows the paint to adhere better and provides an even finish. Cleaning the surface removes contaminants such as dirt, oil, and old paint, which can negatively affect adhesion and the final look of the applied coating.

While creating a rough texture can be beneficial for adhesion in certain circumstances, the focus is generally on achieving a smooth finish, especially if a topcoat is applied directly after priming. Maximizing paint thickness and applying multiple layers of primer can be part of the process, but they are secondary to ensuring that the surface is properly cleaned and smoothed out first. Overall, achieving a clean and smooth surface is fundamental to a successful painting project.