Which condition is likely to occur if a technician fails to perform a test panel before repainted areas?

When a technician fails to perform a test panel before repainting areas, the risk of improper color matching and adhesion increases significantly. A test panel allows the technician to evaluate how the paint reacts with the substrate and ensure that the color is consistent with the surrounding areas. This step is crucial because different factors such as the original paint's composition, the lighting conditions, and the surface preparation can significantly affect the final appearance of the paint.

In the absence of this test, the technician might proceed with a repaint that does not match the original color, leading to visible discrepancies that can affect the aesthetic quality of the repair. Furthermore, without assessing adhesion on a test panel, there may be a risk that the new paint will not bond effectively to the surface, which can result in peeling or chipping over time. Therefore, performing a test panel is essential to ensure both the visual quality of the work and the durability of the paint job.