• The substrate is unclean (dirt, dust, grease).
  • Natural resins and waxes in the wood (pine, exotic wood, etc.), melamine film.
  • The base lacquer coat is too thick and the base surface is over-sanded (overly fine sanding).
  • Insufficient sanding of the base/interlayer sanding.
  • Mismatch between the base and the final lacquer.
  • Droplets of the lacquer are too dry when they fall on the workpiece.
  • Too much time has elapsed between the sanding and the lacquering.


  • Clean and degrease the surface.
  • Use the recommended insulation, sand the foil before applying the lacquer.
  • Smaller application of the lacquer, lower spray pressure.
  • Check the sandpaper quality (wear and tear).
  • With machine sanding, keep an eye on the pressure and temperature to prevent overheating of the sanded lacquer coat.
  • Use compatible materials.
  • Use a slow thinner, check the distance between the workpiece and the spray gun, increase the flow of the lacquer.
  • Repeat the sanding and dust removal.


  • Sand the surface down to the base/substrate.
  • Degrease and re-apply the lacquer according to the recommendations.

For more information, do not hesitate to contact us.