Powder coating application issues

When the coating is applied, small lumps form on the surface

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

  • wet compressed air
  • insufficient air system pressure

Application equipment

  • kinked / pinched powder hose
  • poor fluidization of powder coating:
    • too much air (sucks in air)
    • too little air (fails to suck in enough powder)
  • worn electrostatic parts (CORONA):
    • ejector block
    • ejector nozzle
    • ejector
    • powder hose
  • worn TRIBO parts:
    • ejector block
    • ejector nozzle
    • ejector
    • charging hose
    • powder coating gun

Application equipment setup

  • transport air set too low

Paint (powder coating)

  • the powder is too wet and clogs the transport routes
  • the powder is too fine and clogs the transport routes:
  • recycled material content is too high
  • too fine from factory
  • the powder is too fine and the fluidization needs to be adjusted

Is there anything we can do to help?

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