Liquitex Professional Acrylic Ink! is a range of 30 extremely fluid acrylic that use super fine pigments suspended in a state-of-the-art acrylic emulsion. They dry quickly, are permanent, water resistant and non-clogging, which makes them ideal for a variety of techniques from watercolor effects to stamping. Intense bold light-fast colours. They are extremely fluid, no need to dilute for airbrushing of calligraphy. Superior water resistance.