Which technique is used to improve consistent application by maintaining a set distance from the surface in robot painting?

• A. Increasing paint viscosity
• B. Distance control
• C. Reducing ventilation
• D. Skipping pre-programmed speeds

Answer: (B)

Distance control is the technique that ensures a consistent coating by keeping a constant stand-off distance between the spray nozzle and the surface. When this gap is fixed, atomization, spray pattern, and the amount of paint reaching the surface stay repeatable, leading to uniform film thickness and a predictable finish. If the nozzle gets closer, you can get heavy buildup, runs, or texture variation; if it’s too far, the coat becomes thinner, the pattern changes, and there’s more overspray. Other changes, like altering paint viscosity, reducing ventilation, or skipping programmed speeds, don’t directly enforce a constant deposition geometry and thus won’t inherently guarantee the same level of consistency in application.