Permeability properties are essential data for the selection of materials and design of products across a broad range of market sectors from food packaging to automotive applications to medical devices. In its fourth edition, Permeability Properties of Plastics and Elastomers is a comprehensive resource that brings together a wealth of permeability data in a form that enables quick like-for-like comparisons between materials. Authored by industry insider Larry McKeen, the book is structured with four introductory chapters followed by detailed chapters organized by plastic type. Each chapter includes a manufacturer and trade name list, applications and uses list, as well as tabular and graphical data. It features explanatory text aimed at making the content accessible and the data is supported by a full explanation of its interpretation. This book is a valuable resource for professionals in the field looking to stay up-to-date on the latest permeability information and its application in various industries.