Choosing the Right Beads for Ink and Paint Pigment Dispersion, grinding media for pigment dispersion, zirconia beads vs glass beads, beads for paint grinding, ink pigment dispersion beads, nano dispersion grinding media, bead mill grinding media, Choosing the wrong grinding media ruins color strength and gloss. This guide compares zirconia, glass, and zirconium silicate beads for ink and paint dispersion.