What is an aspect of FBE concerning its application visibility?

FBE, or Fusion Bonded Epoxy, is often known for its smooth and aesthetically pleasing finish after it has been applied. This type of coating is popular in various industries, particularly for protecting pipelines and other infrastructure elements from corrosion. The application of FBE results in a consistent and smooth surface that contributes not only to its visual appeal but also to its performance characteristics. A smooth, painted finish is desirable as it helps in preventing the accumulation of contaminants and enhances the overall durability of the coating.

The other options do not accurately reflect the characteristics of FBE. While it's true that some coatings can become less visible after application due to their nature, FBE is specifically noted for its smooth finish. Similarly, while some coatings may be intentionally textured or rough, FBE typically provides a refined surface. Lastly, the color limitations of FBE are not strictly confined to only dark colors; it can be formulated in a variety of colors based on specific requirements. Thus, understanding the smooth, painted finish of FBE is essential for its application and performance, marking it as a definitive aspect of the coating.