Introduction
The coating window is a conceptual framework used to determine the operating parameters that result in stable and defect-free coatings. This tutorial will guide you through the fundamental principles of the coating window by exploring three key models: the viscous model, the capillary model, and the viscocapillary model.
We’ll begin with the viscous model, which focuses on the role of fluid viscosity and flow behavior in coating stability. Next, the capillary model will be introduced, emphasizing the impact of surface tension forces on film formation and stability. Finally, we will integrate these perspectives with the viscocapillary model, which provides a comprehensive view by accounting for both viscosity and capillary effects. By the end, you will understand how to apply these models to optimize coating processes.
