Homebrew PCBs

Probably because it's a fairly nasty chemical. Use proper handling and
storage procedures. Definitely read the MSDS.

ST

On Tue, Nov 3, 2009 at 2:38 AM, Simao Cardoso <simaocardoso@...> wrote:
> But i still didn't
> find a local chemistry store to buy thiourea. There are Silver cleaning
> products based on thiourea but they are almost as expensive as the tin
> kits. I guess i will order thiourea by mail like the previous time.
>