Joncryl 91 Acrylic colloid Johnson Polymer North America South and Central America Acrylic Resins Inks INKS Joncryl 91 is 26% solids, very low VOC acrylic colloidal and neutralized solution of JONCRYL 142 for carbon black dispersions or corrugated ink letdowns Very low VOC acrylic colloidal and neutralized solution of JONCRYL 142. Used for corrugated ink letdowns.