Powder Coating For EMI Emissions
I am powder coating a CRS enclosure and want to know what effect on EMI emissions suppression grounding the powder coat would have compared to a zinc plating finish (per ASTM 633 SC2).
Q. I am powder coating a CRS enclosure and want to know what effect on EMI emissions suppression grounding the powder coat would have compared to a zinc plating finish (per ASTM 633 SC2). I know there are “conductive” powder coating paints available or I could mask certain area’s of the enclosure to get better surface contact, but I would rather not have to go that route, unless it is necessary. C. J.
A. There are some powder coatings that offer sufficient grounding for EMI emissions. I am sure that they are not as effective as metal plating (i.e. zinc plating). However, they may be good enough for your application. Try some and test to your
standards.
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