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On the Fence about Film Thickness
How should a shop set up its racks and spray guns to achieve more uniform coverage on all sides of parts such as fence posts?
Ask an Expert Published: 8/1/2014
Refurbishing Gas Cylinders
We refurbish LPG cylinders and apply powder coating over the shot-blasted cylinders, but we have trouble getting coverage into the deep areas where the collar and foot-ring are welded onto the pressure vessel. I am looking for a nozzle that can reso...
Ask an Expert Published: 10/28/2013
Applying Metallic Powder
We apply a metallic, silver powder to sandblasted parts, many of which are also processed through a five-stage iron-phosphate wash system. We have a lot of problems with the pigment “bunching” and standing up on the edges, and cannot seem to elimina...
Ask an Expert Published: 9/23/2013
Clumping of Powder
What causes some of our powders to clump up and resist fluidization and flow?
Ask an Expert Published: 8/2/2013
Powder Gun Voltage Adjustment
We currently are using spray guns where we can only control the KV and not the micro amps and are having a problem with the film thickness of a particular polyolefin powder.
Ask an Expert Published: 7/31/2013
Paint vs. Powder on Transformers
What are the advantages and disadvantages of powder over liquid painting on the exterior of our products?
Ask an Expert Published: 5/30/2013
Coating Aluminum Extrusion Vertically
Can you explain the pros and cons of coating aluminum extrusions in a vertical racking system?
Ask an Expert Published: 3/27/2013
A Good System Gone Bad
We have had problems lately with light coating on our automotive products. We have started to clean the racks more often, and this seems to help a little, but we still are not getting the kind of coverage we got when the system was new.
Ask an Expert Published: 2/21/2013
Irregular Appearance
We have trouble with consistency in the appearance of medium-gloss colors on aluminum extrusions.
Ask an Expert Published: 2/20/2013
Splotchy Appearance in Coating
We use manual spray guns to apply a textured powder over a cast part, and that black finishes have a dark/light, splotchy look to them after they are cured.How can wer get better appearance?
Ask an Expert Published: 2/19/2013

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