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Subject: Re: [Homebrew_PCBs] Sponge etching with HCl and H2O2?

From: Leon Heller <leon355@...>
Date: 2011-11-26

On 26/11/2011 12:02, tda7000 wrote:
> I see some people get very fast etch times with a sponge and ferric
> chloride...
>
> But has anyone tried that method with the HCl and H2O2 solution, or the
> cupric chloride?
>


I used to use a soft brush, until the ferric chloride dissolved the
metal holding the hairs.

HCl/H2O2 is very fast anyway, but it could probably be useful for CuCl2.

Leon
--
Leon Heller
G1HSM