Drop-like or wrinkle-like swellings of coating on vertical surfaces, forming bleedings, tears and socalled curtains.

  • wrong selection of coating materials inadequate to the conditions of coat application (too slow thinners),
  • too low viscosity of applied coat,
  • too cold coat mixture or object to be coated,
  • too thick coat layers,
  • too short drying time,
  • spray gun kept too close to the coated surface,
  • too large diameter of spray gun nozzle,
  • irregular conduct of a spray gun while coating.
  • apply appropriate materials in accordance with the technology recommended by the manufacturer.
Sand runs and sags, then mat and polish.

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