I thought we has just about finished with this topic, but I had a new
thought...  Even if we (by which I mean Roman :-) are unable to find
an ink that works as etchant resist, there might still be usefulness
from inkjets for print soldermasks and/or "silkscreen" layers on PCBs.
Both of these have less stringent requirements of the ink (both in
resolution and chemical resistance)  AND (unlike etching) they're tasks
with fewer alternatives for the amateur...

BillW

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