If spray painting results in a dry and rough surface, what are the likely causes?

When spray painting results in a dry and rough surface, one of the primary causes is indeed related to the application conditions, particularly too much air pressure or a spray gun that is held too far from the surface. High air pressure can cause the paint to atomize excessively, leading to a more dispersed spray pattern. This can result in tiny paint particles landing on the surface in a way that creates a rough texture, rather than a smooth finish. Additionally, if the spray gun is held too far away, the paint particles may begin to dry in the air before they reach the surface, further contributing to a dry, rough feel once they land.

This highlights the importance of maintaining appropriate air pressure and a consistent distance when using a spray gun to achieve a uniform finish. Proper technique ensures the paint lays down smoothly and adheres well, leading to a desired aesthetic quality without textural issues.