Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> > BTW the 6/6 and 8/8 rules test pcb work properly. Only problem i 
> > have now  
> is the ink does not hold up to etchant (CuCl) as well as toner. The 
> last  
> board i cured with 300C hot air, and it turned out 90% ok, but on one 
> edge  
> the traces were still attacked (pink).
> I hope i can sort this out, ferric chloride is a lot less agressive to  
> resist...
> 
> thanks
> 
> ST
>

Maybe it's too acidic? I tried the HCl + H2O2 mixture once, and made
it too strong, it ate right through the toner and the permanent marker
I had used to touch it up.