Digital BW, The Print

Hi,
     I'm using standard Epson Inks on my 1280.  I bought a can of
Lumijet Imageseal ($20.00!).  It turned my BO print a weird shade of
green and darkened everything to the point of being totally
unacceptable.  But the ugly print was indeed waterproof after that.
     So as another experiment, today I went to a local craft store and
bought a water-based PUR varnish, brushed it on, and all the ink ran and
bled into the white parts of the print.  Although again the ugly print
was waterproofed after that.
     Will using a rod to apply this stuff not affect the inks, or is it
a matter of needing to use a carbon based ink to begin with?  What am I
missing here?

Thanks,
Ed
http://lightandsilver.com