One more comment on this topic and I'm done. When coating metal parts the sharp edges and corners can be chamfered or radiused in order to make it easier to build up the coating thickness as required.
Best regards, Doug Douglas E Powell Laporte, Colorado USA On Fri, Jan 13, 2023, 9:32 AM Douglas Powell <[email protected]> wrote: > All that said, I have achieved approvals from third party agencies when we > did multiple coatings. The problem with multiple coatings is that when you > apply it electrostatically, then the insulation value of the first coat > makes it difficult to apply a second or third coat. > > Doug > > Douglas E Powell > Laporte, Colorado USA > > On Fri, Jan 13, 2023, 9:28 AM Douglas Powell <[email protected]> wrote: > >> I have investigated powder coatings for basic insulation in the past. And >> I had one primary concern that I was never able to fully resolve, and that >> has to do with the coating thinning out at corners and edges of metallic >> parts. Because of the surface tension of the coating as it is applied on >> edges, it will thin out to just a few mils of thickness and as a result >> they don't really provide insulation value. In any case without some sort >> of a third party approval on the coating itself it's difficult to know. And >> again anodization might be a good option. >> >> Best regards, Doug >> >> >> Douglas E Powell >> Laporte, Colorado USA >> >> On Fri, Jan 13, 2023, 2:26 AM Boštjan Glavič <[email protected]> >> wrote: >> >>> Dear experts, >>> >>> >>> >>> Does anyone has expeience about powder coating used as insulation? For >>> example, powder coated bus-bars do not require additional spacings for >>> basic insulation. >>> >>> >>> >>> I found one article below, but there are no details. >>> >>> >>> >>> >>> >>> >>> https://knowledge.ulprospector.com/11788/pc-the-basics-of-powder-coatings/ >>> >>> >>> >>> >>> >>> What would be requirements for testing and evaluation of powder coating >>> used as insulation? >>> >>> >>> >>> Thank you for your valuable support. >>> >>> >>> >>> Best regards, >>> >>> Boštjan >>> >>> SIQ Ljubljana >>> - >>> ---------------------------------------------------------------- >>> >>> This message is from the IEEE Product Safety Engineering Society >>> emc-pstc discussion list. To post a message to the list, send your e-mail >>> to <[email protected]> >>> >>> All emc-pstc postings are archived and searchable on the web at: >>> http://www.ieee-pses.org/emc-pstc.html >>> >>> Website: http://www.ieee-pses.org/ >>> Instructions: http://www.ieee-pses.org/list.html (including how to >>> unsubscribe) <http://www.ieee-pses.org/list.html> >>> List rules: http://www.ieee-pses.org/listrules.html >>> >>> For help, send mail to the list administrators: >>> Mike Cantwell <[email protected]> >>> >>> For policy questions, send mail to: >>> Jim Bacher <[email protected]> >>> David Heald <[email protected]> >>> ------------------------------ >>> >>> To unsubscribe from the EMC-PSTC list, click the following link: >>> https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 >>> >> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
