Fifth Edition discusses the rapidly advancing field of fillers, the substances added to plastics and composites that add value by improving and modifying the properties of materials and reducing costs. This new edition is an essential reference for engineers and scientists using fillers in a range of materials, including plastics, rubber, adhesives, and paper. Designed to be a comprehensive reference for both experienced practitioners and those new to the field, it covers available fillers and their properties, their effect on filled materials, their rheology and flammability, recycling considerations, and their use in practical applications.