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Exploring the: Pretreatment for Powder Coating Zone
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- Chipping
- Powder chips off of some of our fastener products in the field. Could you recommend a quality control test to better predict when this will happen so we can catch the parts before they make it to our customers?
Ask an Expert Published: 1/4/2013
- Proper Racking
- Is there any way to qualify the impact of racking on the powder coating process?
Ask an Expert Published: 12/13/2012
- How to Limit Outgassing on Castings
- I cannot find a way to powder coat aluminum castings without severe outgassing and blisters. Does the temperature have a role to play versus line speed? Will higher temperature emit more gas from the aluminum casting?
Ask an Expert Published: 12/11/2012
- Orange Peel on Wheels
- I powder coat alloy wheels. When the primer coat is applied and cured, the finish has a lot of orange peel. I preheat the wheels to 212° before applying the primer. Any suggestions on how to limit the orange peel look?
Ask an Expert Published: 12/6/2012
- Discolored Metallic Powder Finish
- We have a powder coat finish for our railing products that has been discoloring in the mountain states region (Colorado, Utah and Wyoming). The finish is textured metallic with a goldish tint, but it has been turning a darker color and rubs off upon...
Ask an Expert Published: 12/4/2012
- Further Comments on AAMA 2605
- n the August issue, I wrote a response on the subject of compliance with the American Architectural Manufacturers Association standard 2604 and 2605.
Ask an Expert Published: 11/27/2012
- Oven Cost
- Please explain how to calculate the heat load capacity of a paint baking oven, using aluminum alloy wheels as an example.
Ask an Expert Published: 11/6/2012
- 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
- Pinholes in Powder Finish
- We apply powder coating on aluminum panels, and are facing a problem with pinholes. Our pretreatment is acid etching and chrome-free coating. Please give me a solution for the pinhole problem.
Ask an Expert Published: 9/27/2012
- Voids in Coating
- What can we do to get better powder coverage on small, tight recesses on parts?
Ask an Expert Published: 9/26/2012