Homebrew PCBs

Aha! I didn't think of the hair-bleaching angle!

73,

Todd
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K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
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QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design


On Mon, Mar 11, 2013 at 11:52 AM, Ron Yost <musik42@...> wrote:

> **
>
>
> > The H2O2 I get from the drug store all say 3% on their labels. It works
> > very well and quickly in my H2O2+HCl etchant. I've seen "food grade"
> H2O2
> > at 35% used in food processing and a number of alternative-health
> > preparations (they actually drink the stuff--whoa!--though probably not
> > without dilution). Google "food grade H2O2." You'll find lots of
> > suppliers, including Amazon.
> >
> > Todd, K7TFC
>
> Sally Beauty Supply stores sell 30 and 40 vol. H2O2 (Hydrogen Peroxide).
>
> Ron Yost
>
>  
>


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