Good Adhesion Aliphatic Polyurethane Resin For Composite Ink PU ink binder DR-3285 is used for common composite ink without boiling or retort resistance requirements. Specification of Polyurethane Resin: Item Value Appearance Colorless to pale yellow transparent liquid Solid content 48-52% Viscosity,mPa• s/25℃ 2500-3500 Solvent Ethyl acetate, isopropanol Characteristics of Polyurethane resin : Good bonding strength Excellent solubility in alcohol, can be completely diluted