Solvent adhesives mainly consist of blends of different solvents.
Their mode of action is based on partial dissolution of the adherend surface, during which the polymer chains swell and become interlocked. After the parts are joined, the solvents evaporate from the adhesive and diffuse into the material. The interlocked polymer chains contract to form the union. Solvent adhesives generally provide good bond strength. Their advantage lies in the rapid initial bond strength between the bonded parts and their suitability for outdoor applications.