Soudafoam FR HY is a high-performance, fire-resistant, one-component polyurethane foam designed for easy application by hand. Engineered for maximum efficiency, it offers up to 25% more yield than standard fire-resistant foams. It rapidly cures and expands 35–40 times its initial volume, delivering outstanding thermal and acoustic insulation. With excellent primerless adhesion to most construction materials and compliance with international fire safety standards, Soudafoam FR HY is ideal for sealing joints, gaps, and penetrations in fire-rated constructions.