• Incorrect spraying viscosity, spraying technique, flash-off times, spraybooth temperature
• Defective spray gun set up, incorrect spraying pressure
• Unsuitable thinners
• Adjust material correctly
• Keep spray gun parallel to object
• Choose suitable spray gun set up
• Use manufacturer’s thinners
• Ensure sufficient flash-off
• Follow application recommendations in technical data sheets
• When using conventional basecoat: use drop let method before spraying clear
• After clear has through-dried, sand surface and repaint
• When using waterborne basecoat: apply uniform finish on wet basecoat in accordance with technical data sheet