>Complete waste of time - you get uneven coating, and dust spots. DOn;t =
>even think about it unless you have a cleanroom and a dip-tank.=20 =20

Okay, that is an opinion. I use CRC spray-on photoresist and get great
results. You do not need a cleanroom, you need to preheat the board to
~60C before spraying each layer. I have traces down to 20 mils without
trouble. No uneven coating, no dust spots.

Peter

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