Blacklight for coating inspection| 19 September, 2011
Hopefully the coating does contain a UV tracer. We used a silicone years ago that did not, but UV did make it fluoresce to a degree, you just couldn't ensure 100% coverage. One time we did have a problem with the coating getting on connector pins, so we had to do a 100% screen. We went downtown and got all the black lights a store had to offer. They actually worked, just had to view in a darkened room.
Blacklight for coating inspection| 23 September, 2011
You can pay high-end and just purchase from any big supplier (All-Spec, EIS, etc.) Or you can stop by your local Lowes/HD and find the 15" black-light fluorescent tubes and a cheap desk lamp that will hold them. Put it in a dark room and you are done.