A structural adhesive is a “load-bearing” adhesive that is used to bond a joint and is capable of holding two or more substrates together under stress. These joints are the most important bonds in a product because failure can be catastrophic to the product’s structure and function. When a product is exposed to vibration, shock, chemicals, temperature deviations, or other types of weakening or destructive agents within specified tolerance levels, a properly applied structural adhesive should remain securely bonded.