What should be done to ensure proper adhesion when painting surfaces?

To ensure proper adhesion when painting surfaces, it is essential to ensure that the surface is clean and properly prepared. Surface preparation involves removing any dirt, grease, dust, or previous paint that could interfere with the paint's ability to adhere effectively. This preparation may include washing the surface with a suitable cleaner, sanding to create a rough texture for better grip, and potentially applying a primer suitable for the surface material.

Proper adhesion is crucial because it ensures that the paint adheres well to the surface, providing durability, helping to prevent peeling or flaking, and ensuring a smooth finish. If the surface is not adequately cleaned or prepared, the paint will not bond correctly, leading to poor performance of the paint job.