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Subject: Re: Etchant solutions - home-brew questions...

From: "lcdpublishing" <lcdpublishing@...>
Date: 2005-07-19

--- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> The clearest etchant I am aware of is ammonium persulphate (AP). As
> it gets consumed, it turns a rather pretty shade of blue but is still
> clear enough to see through.

Is this (AP) something that you can make from common products or is it
something you purchase for this purpose?

Thanks

Chris