[chbot] where to buy ferric chloride in chch?

[Andrew Errington]

For etching circuit boards (copper) in the past I have used a mixture of
hydrochloric acid and hydrogen peroxide. The internet tells me this will
work on brass too. Be careful of the order in which you mix them.

Andrew

On Tue, Mar 5, 2019, 12:20 Robin Gilks <robin at gilks.org> wrote:

>
> > hello
> >
> > Can anyone please advise of a local supplier of ferric chloride?  I would
> > like to have a go at etching some brass nameplates.
> >
> > kind regards
> > Paul Willmott-Dalton
>
> I've had better luck using a copper sulphate & hydrochloric acid mix. The
> former available from agricultural supplies (e.g. Fruitfed/PGGR) and the
> latter from a swimming pool shop.
>
> Way cheaper than ferric chloride (if you can even find it these days)
>
> --
> Robin Gilks
>
>
>
> _______________________________________________
> Chchrobotics mailing list Chchrobotics at lists.ourshack.com
> https://lists.ourshack.com/mailman/listinfo/chchrobotics
> Mail Archives: http://lists.ourshack.com/pipermail/chchrobotics/
> Meetings usually 3rd Monday each month. See http://kiwibots.org for
> venue, directions and dates.
> When replying, please edit your Subject line to reflect new subjects.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ourshack.com/pipermail/chchrobotics/attachments/20190305/a6c01784/attachment.html>