Adhesives can be classified in several ways, including their material origin (e.g., natural or synthetic) and their type of cure (e.g., physical curing such as drying or chemical curing).
Adhesive and coating systems that use ultraviolet (UV) or visible light to begin the curing are intrinsically very attractive systems to the manufacturing engineer, allowing assembly of components and then “curing on command” by exposing to the radiation.
In the plumbing industry, solvent-based PVC cements are used for bonding PVC plastics. However, if you need a solvent-free system, cyanoacrylates and reactive acrylics have been widely used on rigid PVC.
Electrically conductive adhesive use is rising as fine spacing, environmental restrictions, and new materials impact or replace vehicle assembly methods.
This is a good question for two reasons: first, adhesives and sealants often have to fill large irregular gaps and expansion on curing enables them to achieve this; and second, the products usually shrink on curing.