Homebrew PCBs

>Does anyone use sodium silcate?

I use sodium metasilicate with off-the-shelf positive resist boards. An 
80 cent packet lasts about a year. Have NaOH in abundance but use it 
only for stripping the remaining resist after etching.

--- In Homebrew_PCBs@yahoogroups.com, "Andrew" <andrewm1973@...> wrote:
>