Polyurethane Non-Silicone Surfactants: Improving Flow and Leveling in PU Coatings Introduction Polyurethane (PU) coatings are widely utilized across various industries due to their excellent mechanical properties, chemical resistance, abrasion resistance, and durability. However, achieving a smooth, defect-free surface in PU coatings can be challenging. Surface tension gradients arising from variations in solvent evaporation, pigment dispersion,...