Homebrew PCBs

--- Stefan Trethan <stefan_trethan@...> wrote:

> Well, that sounds easy..
> BUT thiourea ia pretty nasty stuff!
> It is known to produce cancer (no idea which dose
> etc.).

Not as nasty as:

1.) Gasoline which is a known carcinogen
2.) Kerosine which is a know cacinogen
3.) Methlyine Chloride which is a known carcinogin and
also cause neurological damage.
4.) Tolulene (Main ingredient in a lot of glues) which
is a known carcinogin and causes neurological damage

I could go on and on..................


> and it is very toxic to the environment (DON'T put
> it down the drain!).

I see. Like fecl or copper chloride baths are not...?
What about the tinnit (TM) solution? The tinnit (TM)
crystals ARE composed of the compounds used in this
same solution. Add water and you have what I posted.
FWIW, this solution is the only currently known route
to electroless tinning that is cyanide free. 

If you would prefer a cyanide based method (That does
not involve thiourea, I'll be happy to email you
one...

> I myself rather use other methods.

What method do you use?

> Why never add water to acid?

You will end up wearing the acid. Further, when
pouring /measuring/ dispensing any chemical (Acid or
not...), do it at eye level and always wear eye
protection and protective clothing.




Best regards


Marvin Dickens
Alpharetta, Georgia  USA


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