In a message dated 6/30/2005 8:07:35 A.M. Central Daylight Time,
lcdpublishing@... writes:
With regard to chemical etching of boards, what chemicals or materials
are good for resist?
Chris: GOOD question! The "resist pens" are generally marginal, if they
work at all. There is a German (Stätdler? Sp?) RED pen that is supposed to be
superior. I bought some "Industrial Sharpies" (U.S. make), but haven't had
time to try.
FINGERNAIL POLISH (basically a fine lacquer) is excellent, particularly for
large areas that need to be "painted".
Of course, the proprietary photo-sensitive sprays, or pre-sensitized blanks
are good, if DONE properly! This takes some patience to DO right!
Lotsa luck! Jan Rowland
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