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 | 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 | 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 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 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 | Thu Jul 07 11:35:16 EDT 2011 | blnorman
I had read somewhere that parylene absorbs UV radiation, and therefore offers very low UV protection. So, yeah probably not a good idea. Plus since it's vapor deposited, unless there is no access to a surface, all surfaces are covered.
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....
Electronics Forum | Tue Jun 03 09:04:38 EDT 2003 | Mike F
Do a search in the archives on conformal coating and silicone conformal coat. A variety of companies make conformal coatings and the equipment to apply it. Coatings can be applied by dipping the board into the coating, brushing it on, or spraying i
Electronics Forum | Thu Mar 31 10:14:06 EST 2005 | davef
There's some nice low-VOC uV coatings out there. We don�t use uV cured coatings, but try: * http://www.emersoncuming.com * http://www.dymax.com * http://www.mgchemicals.com * http://www.loctite.com * http://www.humiseal.com Be aware that uV co
