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Subject: Re: [Homebrew_PCBs] Ferric Chloride - muck at bottom of tank question

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-05-06

On Sat, 06 May 2006 23:10:56 +0200, lcdpublishing
<lcdpublishing@...> wrote:

>
> 3) I know that for some chemical etchants, you use heaters to speed
>
> up the process. I recall someone telling me not to use a heater
>
> with Ferric Chloride so I never did. However, I did buy a fish tank
>
> heater, but never used it. I don't mind waiting 20 minutes to etch
>
> a board if it is safer than doing it faster with the heater. If a
>
> heater is okay to use with this stuff, at what temperature should I
>
> shoot for? (SAFELY!)
>
>
> Thanks guys!
>
>
> Chris


FeCl is best at about 45C to 50C i think.

ST