In places, semolina in the cured paint

Compressed air

• impurities in the compressed air
• moist compressed air
• insufficient air pressure in the system („gun spitting“)

Application equipment

• impurities released from unmaintained equipment:
  • powder hoses
  • ejector blocks
  • powder coating guns
• poorly adjusted fluidization of the powder paint:
  • too much air (sucks in air)
  • too little air (ejector block clogging up)

Paint (powder coating)

• the powder is wet andclogs the transport routes
• the powder is too fine andclogs the transport routes:
  • the recycled material content is too high
  • too fine from production
• the powder is too fine, fluidization needs to be adjusted

Part and its hanging before entering the paint booth

• impurities adhered to the product before painting:
  • insufficient surface pre-treatment
  • impurities in the drying oven

Curing oven

• impurities from the oven
• impurities released from the conveyor