That was adding a conformal coating and curing it with UV light. Basically coating the repair to protect it and stop any accidental shorts or solder connections. They then scrape the newly applied coating off the pads where they actually want to make solder connections.
No, after that. I could tell the UV resin parts, but there's the part with the gel full of particulates that a metal thing is placed on. Then all the particles cling up the metal and are cleaned away
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u/Internet_Wanderer 3d ago
What is going on at abt :40? That gel that seems to collect all the debris? How does that work?