What is the process called when transitioning between an original coating and a new coating by overlapping alternating paints?

The process of transitioning between an original coating and a new coating by overlapping alternating paints is referred to as "tie-in." This method is used primarily to ensure a smooth transition and proper adhesion between different layers of paint. By interlapping the new paint with existing coatings, a mechanical bond is created, which helps to minimize the appearance of seams or differences in color and texture. This technique is particularly useful in low observable aircraft maintenance where maintaining appearance and functionality is critical.

Understanding this technique is essential in structural maintenance as it affects not only the aesthetic quality of the aircraft but also its performance in terms of radar signature and overall durability of the coatings employed. The proper application of a tie-in can significantly enhance the longevity and effectiveness of the maintenance work done on low observable aircraft.