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Subject: Re: [Homebrew_PCBs] Re: Tried Hydrochloric Acid + Hydrogen Peroxide for etching - fantastic.

From: Peter Johansson <rockets4kids@...>
Date: 2014-04-07

On Mon, Apr 7, 2014 at 1:54 PM, Peter Johansson <rockets4kids@...> wrote:
>
> On Mon, Apr 7, 2014 at 9:24 AM, <npublici@...> wrote:
>
>> 'Beauty shop suppliers,like "Sally's carry high percentage peroxide,
>> also.I use it to remove bloodstains from clothing.40 0/0 will remove stains
>> without harming the fabric,using just a drop..
>
> I just googled and there is a Sally's right across the street from walmart
> where I was going to get some fresh 3% H2O2. Is there a specific product to
> ask for? What is the cost and percentage of H2O2?

I think I have answered my own question here:

http://www.using-hydrogen-peroxide.com/hairdressing-peroxide.html

It seems as if the "40% volume" is the cheapest way to add oxygen, and
may actually be cheaper than using 3% medical stuff.

-p.