Adhesion problems of the clear coat
Causes:         
  • Excessive coat thickness of the basecoat.
  • Intermediate and final flash off times of the basecoat are too short.
  • Delay between the final coat of the basecoat and the 1st coat of the clear coat.
  • Wrong mixing ratio of clear coat/hardener.
  • Basecoat surface is contaminated (finger marks, sweat, dust, etc.).

Preventive measures:
  • Do not exceed 3 spray passes of basecoat.
  • Observe intermediate and final flash off times.
  • Do not wait too long after spraying the final coat of basecoat. 
      (If a long wait is unavoidable you should sand the basecoat and respray).
  • Use the recommended hardener in the correct mixing ratio.
  • Avoid any contamination of the basecoat before spraying the clear coat.

Remedy:
  • Sand and repaint
 

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