Hi everybody,
Looking to solve this problem, I found in my garage on a shelf an old bottle of synthetic thinner for paint, toluene based (don't know if it can still be sold) that did the work great.
I've been able to remove the toner clouds with it on already etched PCB.
Some of them which were too deep in the epoxy were not removed completly but turned to a light gray.
This thinner is a little bit greasy so cleaning with acetone is needed.
btw, I finally got good results with TT, 8 mils track width and 6 mils spacing.
Michel Baguet <
bagmik@...> wrote: Thank to all for your answers.
It seems that it doesn't happen with all kind of epoxy, could be dependant of the manufacturing process.
I'll frist try Kim's solution, brushing the toner off under acetone and post the results.
Thank again.
Mike.
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