Finding Effective and VOC-Compliant Anti-Yellowing Agents for Waterborne Polyurethane 🌟 Introduction: The Yellowing Dilemma Waterborne polyurethane (WPU) has become a go-to material in coatings, adhesives, sealants, and even furniture finishes due to its low environmental impact, excellent mechanical properties, and ease of application. However, one persistent challenge that plagues the industry is yellowing—a phenomenon where...