Clouding

Description of problem:  24-_clouding.jpg
    Clouding occurs because of the uneven distribution of the
    metallic flakes.  This phenomenon creates some dark spots
    and is called clouding.

 

Causes:         
    – Spraying viscosity.
    – Spraying technique and pressure.
    – Spray gun set up.
    – Unsuitable thinner.
    – Unsuitable spraying temperature.
    – Flash off time incorrect.

 

Preventive measures:
    – Adjust material viscosity, spray gun set-up spraying technique
      (keep gun perpendicular to panel), flash off time and pressure.
    – Use recommended thinner.
    – In the case of monocoat 2K metallic you may apply a mist coat
      immediately after the last spray coat.

 

Remedy:
    – Spray and repaint.