Muralisrinivasan Natamai Subramanian is a plastics technology consultant specializing in materials, additives, and processing equipment, including troubleshooting. The author obtained his BSc in Chemistry from the Madurai Kamaraj University and his MSc (1988) in Polymer Technology from Bharathiar University. He received his Post Graduate Diploma in Plastics Processing Technology from CIPET, Chennai. He has also completed his PhD in Polymer Science from Madurai Kamaraj University. He has worked in the plastic process industry, mainly in R & D, for 13 years before turning to consultancy and building up an international client base. Muralisrinivasan teaches plastics processing seminars as well as being a Board of Studies Expert Member of Colleges in India dealing with curriculum of technology subjects. He is also the author of two other Wiley-Scrivener books: The Basics of Troubleshooting in Plastics Processing (2011); and Plastic Additives and Testing (2013).