Howard Siegerman, PhD, is the direc- tor of technology for ITW Texwipe. He earned BSc, MA, and PhD degrees in analytical chemistry from the University of Toronto. Siegerman holds two patents, has written numerous arti- cles and book chapters, and is the author of Wiping Surfaces Clean. He is a member of the American Chemical Society, the American Society for Testing Materials, and the Institute for Environmental Sciences and Technology.