Homebrew PCBs

> had to get 30% H2O2 to get it going again.  Note that the initial
> etching is not CuCl but probably HCl.  I saw a lot of bubbles in mine
> - probably Hydrogen.  Have good ventilation.

I was considering doing it outside, I have heard that it releases
Chlorine...

> I suggest you mix a smallish batch -  1 L 3% H2O2 + .5 L 30% HCL to
> start.  You will need a fair amount of 30% H2O2 to regenerate it so
> smaller is better.  

Where can I get 30% H2O2 from? Will they have it a home depot? I am
hoping to reuse this stuff over and over, to avoid trips to the waste
disposal...

> You might want to store the etchant in the etching vessel.  Pouring a
> caustic liquid isn't fun.

This is not an option, it is an open topped flat container that I got in
the radioshack pcb etching kit.

> Note that this brew attacks some plastics - I had left 2 air "stones"

:( is PET (or LDPE) OK?
 
-- 
Anthony Toft <toftat@...>
     I'm Anton, and I approve this message