Powder coating guns fail during spray application

Compressed air

• wet compressed air at the entrance to the powder coating plant
• insufficient air system pressure

Application equipment

• kinked / pinched powder hose
• poor fluidization of the 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:
  • the recycled material content is too high
  • too fine from production
• the powder is too fine and the fluidization needs to be adjusted