What is structural adhesive bonding used for in body repairs?

Structural adhesive bonding is primarily utilized in body repairs to join panels where welding is not effective or feasible. This method is especially beneficial in situations involving dissimilar materials, such as metal and composites, where the heat from welding could potentially damage components or alter their properties. Adhesives provide a strong bond that can distribute loads evenly across the joining surfaces, minimizing stress concentrations and enhancing the overall integrity of the structure.

Using adhesives also offers advantages in terms of flexibility in body design and repair, allowing for the assembly of parts in configurations that may not be possible with traditional welding techniques. This is particularly important in modern vehicle construction, where materials and designs are increasingly complex.

In contrast, filling gaps in metal, reinforcing existing welds, or improving paint adhesion serve different purposes. These processes do not focus on the core function of structural integrity and load-bearing capability, which is where structural adhesive bonding excels.