What process typically must be performed on adherents before they can be joined by adhesive bonding?

The process that typically must be performed on adherents before they can be joined by adhesive bonding is priming. Priming involves applying a special coating or treatment to the surfaces that will be bonded. This process enhances the adhesion between the adhesive and the substrate material by creating a better bonding surface, improving the wetting characteristics of the adhesive, and in some cases, providing additional chemical bonding sites.

Priming is essential for achieving optimal bond strength and durability, particularly when working with non-porous or low-energy surface materials such as plastics or metals. In many adhesive systems, a properly primed surface can significantly reduce the likelihood of failure in the bond over time, making it a critical step in the adhesive bonding process. This preparation step sets the stage for successful bonding by ensuring that the adhesive can effectively bond to the adherent materials.