A structural adhesive is a "load-bearing" adhesive designed to bond joints and hold two or more substrates together under stress. These joints are critical in a product, as any failure can be catastrophic to its structure and function. When exposed to vibration, shock, chemicals, temperature fluctuations, or other potentially damaging conditions within specified tolerance levels, a properly applied structural adhesive should maintain a secure bond.
Advantages of Structural Adhesives
Structural adhesives can provide stronger bonds than mechanical fasteners. Unlike traditional fastening methods, adhesives offer several benefits, including better stress distribution. When two substrates are joined by a fastener, a shearing force will concentrate around the fastener. In contrast, an adhesive bond spreads the force evenly across the bond line, resulting in a more robust assembly.
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