<< Terry, in the States a mortar & pestle is not the same as a ball mill. I
think many of us find it easier to mix gum and dry pigment in a mortar
and pestle, though I gather you do this with muller or knife on glass.
Either way, at least as Mark Golden explained it to me, the result is
dispersal of pigment particles evenly as possible into the gum. Some
people think they are grinding the pigment finer, but this, according to
high authority, is not happening. >>
Just for the record. I was trying to say that Todd Walker used a mortar and
pestle with dry pigment.
Bernie
Bernard Boudreau