CHALKING

Unveiling pigments due to the progressive degradation of film forming substance.

Causes
  • poor quality coat material (abnormal pigment or resin),
  • wrong amount of hardener,
  • aggressive substances from the natural environment,
  • improper care of coating.
Prevention
  • use proven materials,
  • use an appropriate amount of hardener,
  • treat coating regularly with suitable means.
Repair
Minor defects polish, sand and coat again.

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