Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Dave <theschemer@...> wrote:
>
> Is tinning necessary? What is the most cost effective way to buy the 
> tinning solution and how is it applied? I usually buy bulk if things 
> don't have shelf life to worry about.
> Thanks,
> Dave
>

I do not tin my boards.  I use the positive method using the MG 
Chemcials 600 series boards.  I leave the resist on, you do not have 
to remove to solder.  I also once I have loaded the board spray the 
bottom with clear laquer.  The clear laquer would also work well if 
you do TT method as it will seal the copper.