Fast drying, water resistant and transparent drawing inks from Winsor & Newton, favoured by designers, calligraphers, artists and illustrators.Drawing inks can be applied with a brush, dip pen or airbrush.These larger sized bottles are available in popular colours - the water-proof Black Indian Ink, Liquid Indian Ink (which is non-waterproof); a water based solution of traditional Chinese stick ink, and the metallic finish Gold and Silver. Gold and Silver should be added to other inks in small quantities to avoid thickening. Mixtures of Gold and Silver should not be stored together due to adverse chemical reaction.Formulated from a series of soluble dyes in a shellac solution, our drawing inks offer unrivaled strength and colour brilliance. Winsor & Newton drawing inks allow overlaying of different colours for attractive colour mixes.30ml bottles.