Homebrew PCBs

>From: Adam Seychell <adam_seychell@...>
>Reply-To: Homebrew_PCBs@yahoogroups.com
>To: Homebrew_PCBs@yahoogroups.com
>Subject: Re: [Homebrew_PCBs] Etchant Temperature
>Date: Tue, 14 Oct 2003 10:01:35 +1000
>
>In general most chemical reaction rates double every 10
>degrees centigrade increase. Not sure if this applies to
>ferric chloride etching. I remember CuCl2 bubble etching
>taking some 30 to 40 minutes minuets to chew through 1 oz
>copper at 8\ufffdC.

I have the etchant container i n a larger container partly filled with 
boiling water from the kettle. The temperature of the etchant is probably 
about 60C on average. With continuous agitation and fresh etchant it takes 
less than 10 mnutes to etch a board.

Leon
--
Leon Heller, G1HSM Tel: +44 1424 423947
Email: aqzf13 at dsl dot pipex dot com
WWW: http://www.geocities.com/leon_heller

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