Soudal Genius Gun Fire & Acoustic Expanding Foam 600ml B2

• Fire class DIN 4102 B1 • Fire resistance, B2 up to 2 hours & B1 up to 4 hours depending on joint configuration • Acoustic rating - 58 dB • Insulation factor - 36mW/mK • Interior and exterior use Rapid curing B2 Fire Class expanding foam with Genius Gun applicator for accurate trigger control and one-handed application. Excellent thermal and acoustic insulation properties. Ideal for filling around door and window frames, pipe penetrations when DIN 4102 B2 fire class is required. Excellent yield and adhesion on most substrates. Reusable for up to 6 weeks – Attach bung after use.