Electronics Forum | Tue Jan 13 16:40:03 EST 2004 | Jacob Lacourse
Hi folks, I have a conformal coating application where I need the coating to be UV stable for a number of years without any crazing or cracking of the coating. I have looked for such a coating and have come up empty handed. Much of the circuit boar
Electronics Forum | Tue Jan 13 19:55:09 EST 2004 | Tom B
Jacob, You might want to contact Mike Moninger at (941) 359-0933 @ Thermospray. http://www.thermospray.com
Electronics Forum | Fri Aug 30 07:27:21 EDT 2013 | duso02
Contact the coating manufacturer to get their response. We use many different coatings every day and they all glow differently but that has no affect on the coating itself. As stated earlier, it's job is only as an inspection tool to identify where
Electronics Forum | Fri Jul 26 03:52:03 EDT 2013 | danyquintard
Hi We produce electronic pcboards for the aircraft industry. Some of our clients think that the thickness of the varnish left is proportional to the intensity of the blue color of uv's pigments in the varnish. Out off, we know that is not true. The
Electronics Forum | Fri Jul 26 12:41:25 EDT 2013 | gallionc
We've had similar "disputes" with our quality department. A technical engineer from Nordson told me that the flourescents in the coating can look faint depending on the angle in which you look at the surface as well as how solder joints reflect the
Electronics Forum | Tue Aug 27 05:02:13 EDT 2013 | danyquintard
I think it is useful just to see where varnish should not be (eg connection parts). it is necessary to use another method to measure the thickness.
Electronics Forum | Thu Feb 17 15:01:23 EST 2005 | davef
We're not familiar with your DYMAX #984-LVUF. The problem is not with your conformal coating. The problem is with your 0805 [and not all of 0805, probably just those from a specific supplier]. This lack of coverage of components is called dewetting
Electronics Forum | Wed Dec 01 15:53:59 EST 2004 | davef
uV light inspection indicates the "completeness" of coverage, but provides no measurement of coating thickness.
Electronics Forum | Wed Dec 01 07:17:10 EST 2004 | jdumont
I am not familiar with a WOOD light. The TDS for this material says it fluoresces under UV light....
Our Company handle AOI (Auto Optical Inspection) and SPI (Solder Paste Inspection) Machines.
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