Homebrew PCBs

Well, in about 10~15 minutes we should know something, what, I don't 
know :-)

I got some ink out of that cartridge.  I used a piece of wire to 
smear some around on the PCB board. I also shook it to get a few 
drops out and used a coarse brush to "paint it" on the board.  Using 
two sample boards....

1) I hit with the heat gun for a few seconds to make sure the ink 
was dry.

2) didn't do anything special - just let the ink air dry for a few 
minutes.  

Do not expect positive results though.  This is yellow ink, and 
being yellow it won't have much pigment in it like the black stuff 
has.  Which is why I think certain color sharies work bettter than 
others.

To answer stefans main question and the one I too suspected would be 
a problem - beading.  Nope, I could not see any evidence that this 
ink would bead up.  

I also did not do anything the to PCB material.  It was a cut off 
piece that I know is pretty decent quality as I just etched a few 
other boards from it a few days ago.

I am etching in ferric chloride so that is the etchant for my test.