CAUSE: Particle size distribution of the powder is too coarse.
CORRECTION: Contact powder suppliers.
CORRECTION: Contamination by foreign powder can be avoided by careful cleaning of the plant. In addition, different powders should not be mixed.
CAUSE: Too high or too low film thicknesses
CORRECTION: Adjust powder output.
CAUSE: Too wet or too hot workpieces
CORRECTION: Check drying and temperature of the workpieces.
CAUSE: Powder deposits accumulate on nozzles
CAUSE: Drop formation occurs when the powder flow is too strong
CORRECTION: Verification of the voltage and the distance to the workpiece, or the addition of thixotroping agents can help.