Herein is described a method of providing a printed label. The method comprises applying a radiation curable overcoat composition to a liquid electrostatically printed ink disposed on a label substrate; wherein the radiation curable overcoat composition comprises radiation curable monomers and/or oligomers; a photoinitiator; a polyalkylsiloxane containing at least two reactive functional groups, wherein the reactive functional groups are selected from hydrogen, hydroxyl, amino and a double bond; and a cross-linker containing at least two epoxide groups. Printed labels and a radiation curable overcoat composition are also described herein.