" wrote:

I need to fill the pores of white oak blue for a customers project. Is
it possible to mix japan colors or some other dry color into this
"soupy" pore filler? Should I use water based or petroleum based? These
will be topcoated with a water base clear finish call Ceramithane made
by Graham Paint Products.

Any help or suggestion will be greatly appreciated.

There was an article on similar techniques in FWW just a few issues
ago...you might look on the Taunton site and see if you can find it.
I'll try to find it and post the issue...