Homebrew PCBs

One note of caution when using the 30 or 40 "volume" H2O2.
Use it sparingly! During one etching session, I used  too much and had a
very fast etch ~ 1 minute. BUT, it foamed up  so much that it overflowed the
tank and spilled  all over.

Fortunately, I kept a box of Baking Soda handy to neutralize the high acid
spill. It was a real problem to clean up.

SAFETY FIRST!

Myc





On Wed, Sep 17, 2008 at 11:04 PM, billshat44 <billshat44@...> wrote:

>   See the thread called "Cool temperature affects of Muriatic Acid and
> Peroxide". While there are some people who swear by the 3% H2O2, I
> swear at it. As you have seen in this thread, some will say that 3% is
> good enough. I say Balderdash. I went to Sallys Beauty Supply. They
> have several strengths there. Don't look for percentages but volumes.
> I purchased a 30 volume but they sell a 40 as well. I did a google
> search on Sally's Beauty Supply in the Tampa area and came up with
> these phone numbers.
> A. Sally Beauty Supply
> - www.sallybeauty.com - (813) 963-0727 - 2 reviews
> B.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 933-6671 - 4 reviews
> C.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 988-6111 - more
> D.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 979-0119 - more
> E.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 877-9494 - more
> F.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 835-9269 - more
> G.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 882-4119 - more
> H.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 818-1100 - more
> I.
> Sally Beauty Supply
> - www.sally.com - (813) 654-2702 - more
> J.
> Sally Beauty Supply
> - www.sallybeauty.com - (813) 689-3168 - more
>
> I had the same problem you did with what I think was a weak solution
> of H2O2. Last night I etched a 3 by 3 board in 4 minutes. Different
> strokes for different folks I guess. Good luck
>
> --- In Homebrew_PCBs@yahoogroups.com <Homebrew_PCBs%40yahoogroups.com>,
> "Chuck Hackett" <egroupscdh@...>
> wrote:
>
>
> >
> > I'm looking for higher concentration H2O2 to try my hand at Toner
> Transfer
> > board etching.
> >
> > I did some internet searches for Beauty Supplies (and then Hydrogen
> Peroxide
> > on their website) but I came up with a bewildering array of creams,
> etc. but
> > nothing like "30% H2O2 in gallon size", etc.
> >
> > Can someone give me a Product Name, Brand Name, and/or product category
> > (like: "bulk hair bleach", etc.) that can help me `cut to the chase'
> when
> > I'm talking to Beauty Supply places or doing Internet searches? What
> > exactly do I ask for?
> >
> > (BTW: I'm in Tampa, Florida, USA. Are there any list members near me?)
> >
> > Cheers,
> >
> > Chuck Hackett
> > "Good judgment comes from experience, experience comes from bad
> judgment"
> > 7.5" gauge Union Pacific Northern (4-8-4) 844
> > http://www.whitetrout.net/Chuck
> >
>
>  
>


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