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

----- Original Message -----
From: Lez
To: Homebrew_PCBs@yahoogroups.com
Sent: Wednesday, January 10, 2007 4:56 PM
Subject: Re: [Homebrew_PCBs] First PCB


On 10/01/07, DB Express <dbxprss@...> wrote:
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> I just etched my PS board this morning. Not too bad for a first try:
> http://members.lsol.net/gop4evr/unlinked/psboard.jpg
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> I used homebrew etchant (2:1 hydrogen peroxide/muriatic acid).

Can someone explain what this really is?

Such names are meaningless in any other country except the states?

Hydrogen peroxide I think is hair bleach, but if I buy that its
probably got other things in it to spoil it.

What is a muriatic ?

Citric acid is citrus which is orange and lemons, but whats a muriatic
tree look like....

Sorry for giving eveyone a laugh but like I have said before, this is
the UK, we only have maplins and the farm for milk and eggs....


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Hydrogen peroxide is H2O2, used as a bleach by hairdressers. High strength
H2O2 might be difficult to obtain, suicide bombers often use the stuff to
make their explosives.

Muriatic acid is the old-fashioned name for hydrochloric acid (HCl). 30% HC1
is available from hardware stores and building suppliers, it is often used
for cleaning drains and brickwork.

Leon