FW Artists' Ink is an acrylic based pigmented water resistant ink which have 3 & 4 star ratings for permanence.This high degree of lightfastness makes it ideal for the production of pictures for permanent display. The inks are pigment based giving good colour strength and fluidity. The colours can be substantially diluted to achieve the most subtle tones, very similar to watercolour. Such washes will dry to a water resistant clear film and successive layers of colour can be laid over in a highly predictable manner. The combination of subtle tone and strong colour overpainting suggests really interesting creative possibilities. FW inks also work well with airbrush and technical pens.