Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Re: alkaline etchants

Yes, there is an etchant that is considered alkaline. It apparently is used commercially and is discussed here:

http://www.dtsc.ca.gov/PollutionPrevention/sb14/upload/sr-technologies-printed-circuit-board-manufacture.pdf

http://www.chemcut.net/downloads/Chemcut%20Thoughts%20on%20Undercut_Doc.pdf

John

----- Original Message -----
From: AlienRelics
To: Homebrew_PCBs@yahoogroups.com
Sent: Wednesday, May 09, 2012 8:47 PM
Subject: [Homebrew_PCBs] Re: Long-Term CuCl2 setup



Are there alkaline etchants?

Sure, I can change the name to just Etchants.

I've moved the other files/folders I've found about etchants into that folder. So if you've recently created a folder about etchants and can't find it, look in there.

I'm changing it to "Etchants" now.

Steve Greenfield AE7HD

--- In Homebrew_PCBs@yahoogroups.com, "John Anhalt" <janhalt@...> wrote:
>
> Are there any etchants used by hobbyists that are not acid?
>
> Why not just have an "etchants" folder for everything?
>
> John
>
>
> ----- Original Message -----
> From: AlienRelics
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Wednesday, May 09, 2012 8:34 PM
> Subject: [Homebrew_PCBs] Re: Long-Term CuCl2 setup
>
>
>
> There is already an Acid Etching folder, I put the PDF file in there.
>
> http://tech.groups.yahoo.com/group/Homebrew_PCBs/files/Acid_Etching/
>
> The problem with listing folders by someone's name, is what if someone doesn't know who Adam Seychell is but is looking for information on acid etchant?
>
> Steve Greenfield AE7HD
>





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