Several reasons can lead to carry out analyses on your products and materials in particular to determine the origin and the chemical nature of the traces on your materials.
Indeed, these traces can be of different origins such as shocks, coating failure…
Moreover, the analysis of traces by SEM makes it possible to check if they are on the surface or deeper, and if they reach the sub-layers of your materials. Moreover, some traces can appear on several of your batches, so the SEM analysis allows to determine the origin of the trace, its chemical nature, as well as its depth.
Therefore, the support of a laboratory specialized in trace analysis is a considerable asset in the improvement of your materials.