Homebrew PCBs

I buy a lot of stuff in china, but bags of white powder, I'm not so sure ;-)

ST

On Sun, Sep 23, 2012 at 5:23 PM, David <dgh2259@...> wrote:
> Hi All,
> Can anyone tell me what this etchant is? I have not seen such before.
>
>  http://www.ebay.co.uk/itm/1pc-Copper-clad-palte-CCL-PCB-blue-environmental-protection-etchant-200g-/251130218053
>
> Thanks,
>
>
>