Synthetic Adhesives
Adhesion is the force of attraction between molecules of different substances whose surfaces are in contact. These forces are rarely strong enough to bind two surfaces together. An adhesive placed between the surfaces binds them together. Most adhesives are synthetic polymers. The diagram illustrates how some adhesives work. The adhesive remains liquid until the surfaces are in position. Then the adhesive sets. Interpreting Diagrams Explain the purpose of a stabilizer in an adhesive.
Permanent adhesion
An epoxy resin was used to attach the automobile to the billboard. Epoxy resins are often stored in two parts that are mixed just before the epoxy is used. Strong binding forces in these adhesives make them heat- and water-resistant.