What is the ideal fan control valve setting when the gun is 6 to 8 inches from the surface?

The ideal fan control valve setting when the spray gun is positioned 6 to 8 inches from the surface is to set it for an 8 to 10 inch spray pattern. This setting allows for optimal coverage without overspray, ensuring a consistent and even application of paint across the surface being coated.

When spraying at a distance of 6 to 8 inches, maintaining a fan pattern that slightly exceeds the distance of the spray gun reduces the risk of uneven application and helps to avoid the problematic buildup of paint in any one area. An 8 to 10 inch pattern provides a broader dispersion of material which is beneficial for achieving a smooth finish and helps in reducing potential issues such as runs or sags that can occur when the spray is too focused or narrow.

Additionally, utilizing a pattern that is appropriately wider than the distance of application ensures that the entire area being painted receives an adequate amount of product, promoting better adhesion and finish quality.