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Old December 28th 06, 06:04 PM posted to rec.aviation.homebuilt
RST Engineering
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Default Etching copper clad

September '06. Addendum...abrasion with 180 grit sandpaper/cloth does a
better and less hazmat job of removing the resist than does lacquer thinner.

Jim


"Ernest Christley" wrote in message
...


Getting ferric chloride from Radio Shack is getting problematic. Is
there a common household chemical that I can use for etching a circuit
board or two? I seem to remember Jim Weir having an article about how to
do it in the not to distant past, but I can't find anything about it in
my back copies of Kitplanes.