Name a common type of coating failure and its potential causes.

Peeling due to poor adhesion is indeed a common type of coating failure. This failure often occurs when the coating does not bond properly to the surface underneath, which can arise from several factors. Poor surface preparation is one significant contributor; if the surface is not clean, dry, or appropriately primed, the coating can't adhere effectively. Additionally, using incompatible materials—where the coating and substrate are not suitable for each other—can also lead to peeling. Environmental factors such as temperature fluctuations and humidity can exacerbate this issue, causing the bond to weaken over time, ultimately leading to peeling. Understanding the importance of proper adhesion is critical in achieving a durable and long-lasting coating.