Powder coating application issues

Paint bounces off the painted product

If you are experiencing this problem when applying powder coatings, perform a step-by-step check of the following parts of the powder coating application technology.

Compressed air

  • setting of high air transport pressures (part of the paint layer gets blown off)

Application equipment

  • inappropriate application method
  • voltage fluctuations
  • worn  electrostatics parts (CORONA):
    • the cascade fails to charge uniformly
    • the electrode is damaged
    • electrode O-ring - no current is conducted to the electrode
  • worn TRIBO parts:
    • grounding of painting equipment
    • the charging hose is damaged
    • the powder coating gun does not charge

 

Application equipment setup

  • the powder coating gun is too close to the sprayed surface during application (blowing off the powder)
  • the powder coating gun is too far away from the sprayed surface during application
  • the relationship between conveyor speed and movement for automatic spraying is not optimal

Paint (powder coating)

  • unsuitable powder for the given application: TRIBO / electrostatics (CORONA)
  • the powder is wet, it sticks
  • the powder is too fine:
    • the recycled material content is too high
    • too fine from production

Part and its hanging

  • insufficiently dried base material
  • insufficiently grounded product
  • improper hanging of the product

Is there anything we can do to help?

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