Wetting problems

Wetting problems are problems that can occur during the application of coating materials and are manifested by the formation of craters, pinholes, air bubbles or inclusions. These defects occur when the coating material is not evenly distributed on the surface or does not bond properly with it. Craters are often caused by the outgassing of air or solvents from the surface or the coating material. Pinholes are small, pinpoint holes caused by trapped air bubbles or improper application. Air bubbles occur when air traps or inclusions in the coating material cannot escape and reach the surface during the drying process. Inclusions can be caused by impurities in the coating material or on the surface that prevent the formation of a smooth and even layer.

These wetting defects not only affect the aesthetic appearance of the coating, but can also have a negative impact on the protective effect and durability of the coating. To avoid such problems, it is important to prepare the surfaces thoroughly and ensure that the coating material is applied under optimum conditions. This includes mixing and processing the coating material correctly and adhering to the recommended application methods and drying times.