Combines fundamental theory, systematic experimentation, disciplined research, and logical procedures to simplify the thermoplastic selection process as well as reduce production cost and time. Second Edition contains new features such as rheology property data, recycling in resin selection, and more and more. Definition of engineering thermoplastic resins; beginning the selection process; physical property data; rheological property data; the injection-moulding process; kinds of injection moulders; roles of custom moulders in resin selection; prototype parts; estimating part costs; review of key engineering thermoplastics; ranking of resins and selection process; reselection of resin; effects of recycling on resin; other engineering thermoplastics; computerized approach to resin selection; appendix A - partial list of suppliers for engineering; appendix B - details of various files needed for the expert system.