Soudal B3 Expanding Foam Hand Held 750ml

Soudal B3 Expanding Foam in a 750ml canister is a one-component polyurethane foam formulated for general-purpose gap filling, sealing, and insulation. The moisture-curing formula expands upon application to form a stable, rigid structure that adheres to most common building materials, including brick, concrete, timber, plaster, and metal. Designed for non-fire-critical areas, it provides dependable performance in everyday construction and maintenance work. Once cured, the foam can be cut, sanded, plastered, and painted, allowing precise adjustment and a neat, finished appearance. Its closed-cell structure ensures resistance to shrinkage or post-expansion, maintaining dimensional stability even when applied overhead. The cured foam contributes to both thermal and acoustic insulation, helping to reduce heat loss and noise transmission through gaps, joints, and cavities. The 750ml canister includes an integrated application straw, enabling controlled, one-handed use without the need for additional tools. The straw design allows accurate placement and easy operation, making it suitable for quick and efficient site or domestic application.