1. Problems during the application 1.1 Fluidisation ... - BASF Coatings
1. Problems during the application 1.1 Fluidisation ... - BASF Coatings
1. Problems during the application 1.1 Fluidisation ... - BASF Coatings
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<strong>Problems</strong> <strong>during</strong> <strong>the</strong> <strong>application</strong><br />
<strong>1.</strong>5. Adhesion of powder coating is insufficient (powder coating material flows off) on flat objects<br />
Detection Possible causes Remedy<br />
Colour changes caused by<br />
opacity differences of<br />
powder coating film; surface<br />
does not look uniform<br />
Insufficient grounding of objects, field<br />
strength too high<br />
Metering air or atomised air not ideal<br />
Voltage too high<br />
Powder discharge too high<br />
Optimise system parameters, clean<br />
suspension gear<br />
Change voltage and distance<br />
between guns and object<br />
Reduce voltage<br />
Reduce powder discharge<br />
Grain size distribution not ideal Inform powder coating<br />
manufacturer
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