Homebrew PCBs

The etch rate of a warm solution is way higher than cold. regarding the 
preserving of the ink not sure, if the ink is dissolving or being etched by 
the solution it will may not make a difference with dilute solution because 
the copper etch rate will also slow down and it has to be in the solution 
longer which will give it more time to react with the ink. If the 
temperature actually softens the ink and dissolves it faster then it is a 
different story....

Kim


----- Original Message ----- 
From: "Lee Studley" <indigo_red@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, November 04, 2007 8:14 AM
Subject: [Homebrew_PCBs] Re: direct inkjet, I can't figure this out


>I was wondering if it's best to use cold ferric solution, or warmed.
> I have one of those tanks that sprays the cold ferric chloride. I
> would guess that the cold would work better in preserving the ink.
>
> I bought a continuous ink system and plan to fill all chambers with
> the misYellow.
>
> -Lee
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