Which technician is correct about the appropriate material to use for masking near painted panels?

In determining the appropriate material to use for masking near painted panels, it's essential to understand the properties of various masking materials and their impact on existing paintwork. When masking painted surfaces, it is critical to use materials that won't react with the paint or leave a residue that could damage the finish once removed.

If the response indicates that neither technician provided correct information about suitable masking materials, it implies that both technicians either recommended inappropriate materials or techniques that would potentially harm the finish. This could include using low-quality tape that could tear paint upon removal or materials that are not designed for automotive painting processes, leading to contamination or bleed-through that ruins the repair or touch-up work.

Effective masking often involves using high-quality painter's tape specifically formulated for automotive use, which can prevent paint bleed and ensure clean lines when the masking is removed. Therefore, without a correct recommendation from either technician about the type of materials or techniques to use, the answer aligns with the idea that neither provided valid advice for this task.