FW Artists Inks are acrylic-based, pigmented, water-resistant inks which have either a three-star or four-star rating for permanence. Such a high degree of lightfastness over such a range of fully intermixable colors makes them ideal for use by artists in the production of pictures for permanent display. Colors can be substantially diluted to achieve the most subtle of tones, very similar in character to watercolor. Such washes will dry to a water-resistant film and successive layers of color can be laid over them in a highly predicable manner. FW Artists Inks work well with airbrushes, dip pens, technical pens, and brushes.