[TheForge] Pit cast iron (or steel?)

[Peter Hirst]

Ordinary rust is produced by an electrochemical process, and can really be 
moved along by induced electrolysis.  Hook that sucker to the anode instead 
of the cathode in the usual setup described for electrolytic rust removal 
and watch what happens.


----- Original Message ----- 
From: "Bruce Freeman" <freemab222 at gmail.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Sunday, February 17, 2008 10:57 AM
Subject: [TheForge] Pit cast iron (or steel?)


>A friend is working on an artistic casting, currently with a ground
> surface.  He wants to "age" it by pitting and rusting.  He's tried
> muriatic acid (at cold, outdoor temperatures) and it's a no-go so far.
>
> I've advised him  NOT to move muriatic inside.  He's thinking about
> other chemicals and could use some advice. Does anyone have practical
> experience trying to accomplish such pitting, and can tell how?
>
> -- 
> Bruce
> NJ
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