B3 All Purpose Fill and Fix Expanding PU Foam

B3 rated PU foam. Quick, economic and easy to apply. Improves draught and heat insulation, fills irregular gaps, fixes framework and deadens sound. Can be cut, sawn, plastered and sealed over once cured. Available in 500ml and 750ml aerosol cans or 750ml gun grade canister which can be used with a standard gun foam applicator (BDAG1 or BDAK45). Conforms to DIN4102 Class B3. (Foam rating for products with no fire resistant additives of properties.) The fresh foam adheres to most common building materials including wood, concrete, stone, plaster, metal, PVC and polystyrene. For fitting doors, windows and insulating pipes and filling gaps and can reduce the need for mechanical fixings. Areas of Application: installation of window and door frames and entrance door linings (where a clean and controlled backfill is required) - filling of holes - insulation of penetrations - sealing of thermal and acoustic insulation boards - sealing and connection of joints - reducing the impact of thermal bridges.