Troubleshooting Cure-Related Foam Defects in Two-Component Polyurethane Systems Abstract: Polyurethane (PU) foams are ubiquitous in a wide array of applications due to their versatility and tunable properties. The two-component polyurethane system, comprising an isocyanate component (A-side) and a polyol component (B-side), relies on a complex chemical reaction to achieve the desired foam structure and properties....