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

On 06/12/2010 03:11 AM, Leon Heller wrote:

> NaOH is often used for developing the resist after UV exposure.

I use Na2C03 (sodium carbonate, or washing soda) for developing, and
NaOH for stripping. NaOH is also used in titration, to determine the H+
concentration in CuCl etchant.