FORMULARY NEW CYANOTYPE KIT was formulated by Dr. Michael Ware. The formula was published in the Jan/Feb. 1997 issue of Photo Techniques. According to Dr. Ware, The New Cyanotype process uses a single sensitizer solution, having a long shelf life, to make prints of an excellent stable blue color and a long tonal response. And with a speed much faster than the traditional process. It also loses little, if any, blue color in the final wash water, and is much more suited to a greater variety of papers.