investigating the long-term color stability of polyurethane waterborne coatings with additives introduction: a splash of color, a dash of science 🎨🧪 imagine a world without color. gray skies, gray walls, and gray moods. fortunately, we live in a colorful universe, much of which owes its vibrancy to coatings — especially polyurethane waterborne coatings (pwbcs). these...