ASMACO Gold Universal Multifoam Fire Retardant B2 offers exceptional adhesion to a variety of construction materials, including concrete, wood, metal, and masonry. Engineered with fire-retardant properties rated B2, this foam adds an extra layer of safety to insulation projects. Its self-expanding nature ensures effective filling of gaps, joints, wall cavities, roof tile spaces, drilled holes, and areas around window and door frames. The foam cures by absorbing ambient moisture, forming a dense, moisture-resistant barrier that enhances both thermal and acoustic insulation. This versatile foam is an excellent choice for professionals seeking reliable performance with added fire safety in building and renovation applications.