Personally, I think UV in parylene is not very useful. You will never get good UV trace dispersion with parylene. It will always be spotty. Due to the method of the application of parylene the UV trace in parylene is good only for deciding whether or not a board is coated but never to be trusted for inspection. We find that Parylene is actually easier to inspect for us than liquids once you know what to look for. Lloyd Duso Plant Manager Diamond-MT (814) 535-3505 www.Diamond-mt.com On Wed, May 2, 2018 at 5:45 PM, Wayne Showers <[log in to unmask]> wrote: > The Aven lights have the same longer wavelength (400nm) that Doug is > debating. I have had some escapes using these UV-ring lamps. The > inspection was of Parylene which is known to be spotty at best for > fluorescing, but checking under a UV-A lamp showed clearly the coating on > the pins which was the defect. The defect did not show up nearly was well > under the ring light. NADCAP AC7114 has not been cross applied to AC7120 > as of yet, but should it be, then these lamps will not meet standard. > Unfortunately, if there is any call-out for NADCAP, ASTM or other industry > standard requirement, unless a UV pass filter is used, then both Doug's UV > lights and the AVEN combo Halo's do not meet specification. >