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Proper Racking
Is there any way to qualify the impact of racking on the powder coating process?
Ask an Expert Published: 12/13/2012
Discoloration of Powder
n order to powder coat a grey nylon furniture part, I preheat the part, powder coat it with a white coating, cure the white coating, and then apply a powder clear coat over the white and cure that. What could be causing the part to come out of the o...
Ask an Expert Published: 11/2/2012
Powder on Zinc-Plated Steel
What is the correct process for powder coating after zinc plating on steel?
Ask an Expert Published: 9/19/2012
Uniform Film Thickness
How can we set up our racks and adjust our spray guns to get more uniform powder coating coverage?
Ask an Expert Published: 9/18/2012
Powder on Galvaneal
We have customers that want a smooth powder coating on a galvaneal finish. We prep with a light alcohol wipe, prebake the parts to allow for off-gassing, then spray with a smooth powder. We are having problems with “craters” and specs, so the surfac...
Ask an Expert Published: 7/20/2012
Powder Touchup
Our powder booths have an automatic application area followed by two manual touch-up stations. We have ongoing problems with light coating in areas of the parts, requiring manual touch-up. Areas around welds, seams and inside corners do not get the ...
Ask an Expert Published: 6/21/2012
Star Bursts in the Coating
We are using a wrinkle dark gray powder and often have a problem with “star bursts” all over the product. The stars are visible in the dry film and they do not flow out in the cure oven. We also spray a wrinkle black and get this problem occasionall...
Ask an Expert Published: 5/14/2012
Color Change
Are color changes for powder that are under one minute really possible? I spray all manual in one booth, but I have automatic guns in the other one, and we do reclaim some of our colors, but not all of them.
Ask an Expert Published: 4/13/2012
Repair/Rework on Powder
Is there an industry standard with regard to recoating that we can adopt?
Ask an Expert Published: 3/1/2012
Requirements for Coating Aluminum
Q. I wish to powder coat a part that is die cast aluminum used for exterior luminaire housings. My question is can you explain the basic processes prior to coating and do I need to specify a special powder or are all powder coating materials rated f...
Ask an Expert Published: 12/14/2011

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