Hi Jack - yep, that is one of the more difficult issues with tin whisker risk mitigation. The use of coating materials has been shown to be an acceptable risk mitigation for the capture/containment of a tin whisker but on connectors, the wicking issues detailed by the TechNet crew, can work against us as a valid implementation option. Dave Hillman Rockwell Collins [log in to unmask] On Thu, Feb 8, 2018 at 2:11 PM, Jack Olson <[log in to unmask]> wrote: > We use right-angle headers with exposed leads, so it's a little bit > confusing when a newbie like me reads articles that tell me I can coat my > exposed connector leads to mitigate tin whisker growth and allow closer > spacing with higher voltages, but then find out that the people actually > doing the work advise against it, or recommend more complicated procedures > to inhibit the liquid from spreading. > > I'm glad I asked, > I'm grateful for TechNet, and > I thank you for sharing your experience! > > Thank You, > Jack >