Joncryl 680 Acrylic resin Johnson Polymer North America South and Central America Acrylic Resins Inks >> Water-based INKS >> Varnishes / Over print varnish Joncryl 680 is low molecular weight acrylic resin for high gloss water-based inks and overprint varnishes. Low molecular weight acrylic resin. Used for inks and overprint varnishes. Offers high gloss.