Highland Ham wrote:
Leon wrote:
No, I use conventional UV exposure and FeCl3. With artwork printed on
an inkjet printer I can reliably do 8 mil tracks.
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Leon , How do you dispose of spent ferichloride?
Do you take it to the local Council waste yard ?

Frank GM0CSZ / KN6WH

I just flush it down the toilet. I think that ferric chloride is used
for water treatment and I can't see the small amount of copper doing
any harm by the time it has been diluted millions of times. It's only a
litre ot so every six months - it's negligible.

73, Leon