Abstract

Reactive acrylic adhesives are high-performing structural adhesives. They have rapid cure and unique handling characteristics at room temperature that are an advantage compared with urethanes and epoxy adhesives. As a result, acrylic adhesives have been gaining market share since their inception. They are less sensitive to surface preparation, bond to a variety of materials, and provide high-impact resistance. Today, there are many reactive acrylic adhesives produced by several manufacturers. Their cure profiles depend on a radical initiation mechanism and their formulations are complex, consisting of various components such as methacrylate monomers, elastomers, adhesion promoters, and additives. In this chapter, the cure mechanism, features and benefits, and development trend of reactive acrylic adhesive technology are discussed.