What is a likely cause if spray painting results in a dry and rough surface?

If spray painting results in a dry and rough surface, excessive air pressure is a likely cause. When the air pressure is set too high during the spray painting process, it can cause the paint to atomize too finely. This results in a situation where the paint particles do not have enough time to coalesce and bond properly before they land on the surface. As a consequence, the paint dries too quickly, leading to a rough texture instead of a smooth finish.

Proper air pressure is crucial in achieving an even coat and a good surface finish. Maintaining the right pressure ensures that the paint is distributed effectively, promoting the right flow and leveling characteristics, which are essential for a high-quality final appearance.