Excessive paint build-up around the edges

Application equipment

• improper application method

Application equipment setup

• electrostatic deposition voltage set too high
• poorly adjusted manipulator dead center – on the edge
• improper setting of the voltampere characteristic
• air pressure set too high (the powder is blown off towards the edges)

Paint (powder coating)

• defective powder coating batch
• wet powder coating
• the powder is too fine:
  • the recycled material content is too high
  • too fine from production

Part and its hanging

• insufficiently grounded part

Curing oven

• the temperature rise during the powder coating curing is too slow