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Painting Problems and Solutions

What is it?
  • The complete paint system is flaking and lifting from the substrate revealing the underlying galvanized surface.
Possible Causes
  • Fafrom galvanized surface. A thin layer of oilgenerally applied by the steel manufacturer to protect the metal from corrosion during the initial stages of transport and storage.
  • In other situations substances are applied during the rolling and profiling stage of the product to facilitate the forming processes.
  • Water based coatings are more susceptible to delaminating when subjected to this type of surface contamination.
How Can I Fix This Problem
  • Remove old coating system.
  • Remove oil and dirt contamination with an abrasive solvent containing degreaser.
  • This cleaner should be completely removable by means of water washin ie.
  • The solvent must be water emulsifiable.
  • Recoat with an appropriate coating system.
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