What term describes the chemical reaction resulting in two surfaces sticking together?

The correct term that describes the chemical reaction resulting in two surfaces sticking together is adhesion. Adhesion refers to the molecular force that causes dissimilar surfaces to attract and bond with each other. This process can occur through various mechanisms, such as physical forces, chemical bonding, or mechanical interlocking, depending on the materials involved.

Understanding adhesion is crucial for nail technicians, as it is key to successful product application. For instance, when applying nail enhancements like acrylics or gels, proper adhesion ensures that the materials bond effectively to the natural nail, which contributes to durability and longevity of the manicure.

The other terms relate to different concepts within the field. An adhesive is the substance itself that facilitates adhesion, while a coating generally refers to a layer of material applied to a surface for protection or aesthetic purposes. A cross linker is a chemical compound that connects polymer chains and can enhance durability but does not directly define the act of two surfaces sticking together.