Everbuild EVBB2FIREHAND Firefoam B2 – Fire-Resistant Expanding Foam. Everbuild EVBB2FIREHAND Firefoam B2 is a quick-setting, one-part polyurethane foam with fire-resistant properties, specially designed for applications where enhanced fire safety is essential. Expanding up to 50 times its original volume, this foam meets the fire performance requirements of DIN 4102 Part 1, achieving a Class B2 rating for construction materials. Once cured, it can be cut, sawn, or plastered over in as little as one hour, provided application temperatures (for both can and surfaces) are between +5°C and +25°C (ideally around 20°C). Engineered to significantly slow the spread of flames and smoke compared to standard B3 foams, Firefoam B2 is ideal for a wide range of fire-rated sealing and insulating applications. Key Applications: Sealing gaps around pipe entries through fire-rated walls. Providing fire-rated seals around window and door frames. Filling chases for electrical wiring before plastering. Pre-filling deep joints before applying sealant or plaster. Filling irregular gaps in stone, brick, concrete, or plaster. Fixing door frames, timber structures, thresholds, and window sills. Insulating behind external cladding, soffits, and barge boards. Suitable for use in certain automotive applications. Key Features: Fire-rated to DIN 4102 Part 1 – Class B2. Expands up to 50x original volume. Quick curing – ready to work in just 1 hour. Can be cut, sawn, and plastered over. Manual application – no applicator gun required. Versatile – ideal for construction, insulation, and repair tasks.
