Powder Paint Fluid Bed Problems

With a fluidizing bed powder that is too fine can cause irregular coverage.

Powder paint fluid bed problems.

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. With electrostatic spray processes one needs to monitor kva humidity grounding issues powder delivery issues gun maintenance and replacement of wear parts. If the powder due to reclaiming or efforts on the manufacturer s part is too fine it can cause all manner of trouble. Keeping a close eye on the powder levels and the actual amount of powder on the bed is a smart idea.

Systematically check electrical continuity from voltage source to electrode grid including cable resistors and fuses1. To get the best results with powder paint the paint needs to be fluid meaning that. Air blowing large holes through powder surface. It is very difficult to achieve a thin coating consistently.

Four chamber fluid bed for powder painting. Fluidized bed powder coating is a process where a pre heated part is dipped into a tank of fluidized thermoplastic powder which is typically pvc or nylon. I recently received a jig making kit as a present and i wanted to powder paint the freshly cast jigs. I looked on line and found the quickest way is powder paint.

Many people find that a single fluidized bed coating process is much easier to maintain than a bank of electrostatic spray guns. Film build generally occurs rapidly over the first five mils. Check high voltage source is on. 1 poor charging inadequate powder build or wrap on part.