What is one recommended practice for ensuring effective paint adhesion?

Using sandpaper before applying paint is essential for ensuring effective paint adhesion. Sanding the surface creates a texture that helps the paint grip onto the substrate more securely. This abrasive action breaks the surface tension and removes contaminants, such as dirt, grease, or old paint that could prevent good adhesion. Additionally, the process opens up the pores of the material, allowing the paint to bond more effectively.

Other methods, like applying paint on a wet surface, can lead to issues such as lifting or running, as the paint may not adhere properly in these conditions. Keeping the spray gun far from the surface can result in improper application, leading to uneven coverage and issues with adhesion. Reducing the air pressure during spraying may also affect the atomization of the paint, resulting in poor application and potential adhesion problems. Using the right preparation step, such as sanding, is critical in achieving a strong bond between the paint and the surface.