Good Compatibility Polyurethane Resin For Flexo Printing Ink Polyurethane resin DR-3289 is colorless to pale yellow transparent liquid,with good solubility in alcohol, can be completely diluted with alcohol. Specification of Polyurethane Resin: Item Value Appearance Colorless to pale yellow transparent liquid Solid content 53-57% Viscosity,mPa• s/25℃ 1000-2000 Solvent Ethyl acetate, isopropanol Characteristics of Polyurethane resin : Good bonding strength Good solubility in