Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
> i was just wondering if any one has tried putting water glass (sodium 
> silicate) in a printer cartarage, printing the traces, then expose 
> the water glass to carbon dioxide to make it harden, then etch,
> i havent tryed it yet but will soon, i wiil put a dot on a pcb and (i 
> have some gas to corbonate beer with)and harden the dot.i will see if 
> the water glass will desolve in the etchant.  am working on a 
> repeater for the ham club now and dont have time. if any one has 
> tried this let me know,so i will not have to reinvent the wheel.
> mebo31

It hardens in the presence of carbon dioxide?

I thought you'd just let it dry.

I suspect, as Stefan says, you'd need a piezo head inkjet, not a
bubblejet.

I think, correct me please if I'm wrong, that the only desktop inkjet
printer with piezo heads are Epson. I have an Epson 800 (black only)
inkjet that I'm half done cleaning out the heads so I can try Future
Floor polish in it. I don't have an empty cartridge for it, though, so
I'll have to rig up something else.

From the descriptions of water glass on the web, a thin coat of it may
not work. Worth a try!

Steve