Rapidograph Ultradraw Ink is a black India ink that is waterproof, free-flowing and quick-drying. It can be used for calligraphy, with dip pens and airbrushes, and it provides technical pen users with a rich, non-smearing, very opaque black line. It has a long open time in the pen to ensure zero clogging. Use on paper and film.
Available in a 3/4 ounce plastic filler bottle.