ok. here is what i want to do. i want to make a small PCB and then cover it into organic insulation, but leave the places where the connection is uncovered. how do i do that??
will it be possible to cover those places with some permanent marker and then spray the insulation? i will then clean the marker with acetone(hopefully not the insulation) and have the ability to solder just where the marker was layed.
the reason why i want to do this is because i get solder on the tracks where it shouldn't be, so i want to cover the tracks.