FW Artists Ink is an acrylic based pigmented water resistant ink in a range of 30 colours, all of which have either a 3 or 4 star rating. Such a degree of light fastness over such a range of fully inter-mixable colours makes them ideal for use by artists\" in the production of pictures for permanent display. The inks, being pigment based, are strong and rugged. Strong bold applications of FW can be made in the manner of John Piper or Graham Sunderland, where colour strength, expression and fluidity are required. Equally, however, colours can be substantially diluted to achieve the most subtle of tones, very similar in character to watercolour. Such washes will dry to a water resistant film and successive layers of colour can be laid over in highly predictable manner. FW Artists Inks work well through airbrushes and technical pens which can be cleaned by using Airbrush Cleaning Fluid.