Dr. Ph. Martin’s Black Star Hicarb Waterproof India Ink is a pigment based, extremely opaque, lightfast, archival grade, permanent, non-clogging, non-spreading, non-toxic, non-light reflecting ink. Ideal for use on paper, illustration board and canvas. While extremely opaque, this ink contains no varnish or shellac. It dries fast to a waterproof glossy surface that holds up well to erasing. It dries fast and is heavily pigmented so it leaves behind ink crust after drying.