Homebrew PCBs

It's Claroxide 30, from a beauty supply, and should be fresh. Perhaps 
I'm using too little - I used 30 cc water +30cc HCl +10cc H2O2 for a 
ds board that measured about 4x2 inches. I don't know the thickness 
of the copper. The board was etched horizontal in a container with 
the etchant level only about .25 inches above the surface of the board.

Mark
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At 12:35 PM 3/18/2010, you wrote:
>Is the H2O2 fresh?  It breaks down over time, a solution that's been
>mixed for a while won't have any H2O2 left in it, and HCl won't etch Cu
>without an oxidizer.
>
>Are you sure you used 30% H2O2 and not the more common 3% ?
>
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