Databook of Adhesion Promoters, Second Edition contains data on the most important adhesion promoter products in use today. Information on each adhesion promoter is divided into five sections: General Information, Physical Properties, Health and Safety, Ecological Properties, and Use and Performance. The previous edition of this book was mostly related to silanes, but many new additives have been introduced to the market, many not based on silanes but on one of 37 chemical groups of chemical compounds needed for a variety of products in which silanes do not function, are too expensive, or better performance can be achieved with these new additives. The years that have passed since publication of the first edition have also had a significant impact on sourcing and selection of adhesion promoters for different tasks. Due to mergers and acquisitions, many additives are no longer in use. Because of scientific developments, more products are based on renewable resources and selected from less toxic origins. There is also a clear tendency to limit the scope of application which can lead to many products being designed for specialized, frequently single product applications.