Homebrew PCBs

On 05/07/07, Leon <leon355@...> wrote:
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> ----- Original Message -----
>  From: "Kamal Shankar" <kbshankar2000@...>
>  To: "Homebrew_PCBs" <Homebrew_PCBs@yahoogroups.com>
>  Sent: Thursday, July 05, 2007 7:41 AM
>  Subject: [Homebrew_PCBs] Etchants is use
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>  >I would be interested in getting a good idea of what
>  > are the etchants being used.
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>  > AFAIK, they are :
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>  > 1. Hot FeCl3
>  > 2. Muriatic Acid + Hydrogen Peroxide
>  > 3. Copper chloride
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>  > And I got that hopefully, in order of popularity.
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>  > If all these work, the 2nd choice seems to be easier
>  > to get and use; so why is the first so popular.

because in the UK its all you can buy off the shelf.

Chemicals are not really sold in the UK, even drain cleaner is weak.

If you want chemicals as such then we only have industrial suppliers
so drums etc, paperwork, just not viable.

If its something a drugstore would have, they still probably would not
sell, looking upon you with suspicion as either a bomber or murderer.

So, for UK fe is the big big winner.

we now have sharpies though, only just made it over and only in chunky
pen sizes with 2mm tips, being pushed on adverts for marking clothes /
shoes and other items where big print is needed. (so I'll stick with a
white uniball px203 for now)