Structural Adhesives: What Are Structural Adhesives

Posted on 1/9/2013 1:03:47 PM By ASC

Structural adhesives are used in applications from building airplanes, to craft projects, to sealing wounds or surgical incisions.  These adhesives may be urethane, epoxy, or acrylic compounds and can be classified as reactive or nonreactive. Reactive adhesives are typically one component and work by solvent evaporation or a catalyst that triggers curing. Non-reactive adhesives often involved two or more components that are mixed. The conditions for curing depend on the formulation; common methods for curing include UV exposure, heat, moisture, and drying periods. The advantages of structural adhesives are many and varied. Compared to traditional fastening, such as bolts, structural adhesives can provide reduced weight, vibration damping, durability and resistance to corrosions, design flexibility, variable or customizable curing times, clean or invisible joints, and reduced machining and labor costs.