Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

On 08 Jan 2010 12:20:55 -0500, DJ Delorie <dj@...> wrote:

> The TRF/sponge trick works ∗very∗ well. Heat up the FeCl a bit (I use
> a hot water bath), pour it in a cut up milk jug, and use the sponge to
> wipe it on the PCB. Etches in under a minute, and you can control
> over-etch by only wiping the parts that need it. Now if only it
> weren't FeCl... ;-)

Why don't you use HCl and H2O2?

--
Brian Lalor
blalor@...