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

--- In Homebrew_PCBs@yahoogroups.com, Daniel Johnson <a3v03v0@...> wrote:

>
> I switched from ferric chloride to sodium persulphate (MG Chemicals).  It is a much easier to handle are requires somewhat less care. 
>

You should really try copper chloride.
http://members.optusnet.com.au/eseychell/PCB/etching_CuCl/index.html
Im currently making some. An extra upside is that you can use the HCL (muriatic acid) + hydrogen peroxide to etch as part of creating the copper chloride. The stuff is MUCH less scary than fcl, you can actually see your board , its environmentally friendly and it recycles itself. 7 bucks for muriatic acid and a couple bucks for hydrogen peroxide and youre set pretty much forever