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Subject: Re: [Homebrew_PCBs] Re: trying to do the right thing
From:
Leon Heller <leon355@...>
Date:
2013-03-10
On 10/03/2013 20:57, Rick Sparber wrote:
> Leon,
>
> My chemistry knowledge is small. What does "high-strength" mean?
The ordinary H2O2 you can buy is too dilute. You need the concentrated
stuff.
Leon
--
Leon Heller
G1HSM