Letter 9015

Cupric Chloride/HCL compatible liquid resist ink? 

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I'm looking for a liquid etchant resist ink suitable for use with Cupric Chloride/Hydrochloric Acid etchant, that can be applied using a screen-printing technique on traces down to about .005".

This may be an odd request, but here's my reasoning:

1. Cupric Chloride/HCL is a relatively "benign" etchant.

2. Screen printing of etchant resist would be a damn sight cheaper than a board house/using transfer film for short run production (50-100 boards, 12" * 18" board size).

Any help would be appreciated.. Cheap suggestions also would be good.

Erik Larsen
- Mount Vernon, WA, USA

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