Powder Paint Fluid Bed Problems

Air blowing large holes through powder surface.

Powder paint fluid bed problems.

Check high voltage source is on. To get the best results with powder paint the paint needs to be fluid meaning that. Film build generally occurs rapidly over the first five mils. 1 high voltage source not providing enough kv at charging electrode or grid.

With a fluidizing bed powder that is too fine can cause irregular coverage. Many people find that a single fluidized bed coating process is much easier to maintain than a bank of electrostatic spray guns. Four chamber fluid bed for powder painting. I looked on line and found the quickest way is powder paint.

Systematically check electrical continuity from voltage source to electrode grid including cable resistors and fuses1. I recently received a jig making kit as a present and i wanted to powder paint the freshly cast jigs. It is very difficult to achieve a thin coating consistently. If the powder due to reclaiming or efforts on the manufacturer s part is too fine it can cause all manner of trouble.

1 poor charging inadequate powder build or wrap on part. Keeping a close eye on the powder levels and the actual amount of powder on the bed is a smart idea. Rector we have customers that use both electrostatic spray and fluid bed coating methods and while each has advantages and disadvantages there seems to be far fewer technical problems with fluid bed coating. Powder level too low add powder until feed hopper is filled to proper level packed or moist powder manually loosen powder and fluidize with clean dry air check compressed air for oil water and room for high humidity obstructed membrane.