Zhengzhou Bilin New Materials Manufacturing Co., Ltd.
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Description:
BILIN B2 is a high-performance, flame-retardant polyurethane foam that meets DIN 4102 B2 standards, ensuring it stops burning immediately when the fire source is removed. Ideal for fireproof joint sealing, it effectively fills gaps, insulates against heat and sound, and blocks smoke and gas penetration. This one-component PU foam expands upon air exposure, offering strong adhesion for bonding, fixing, and installation in construction. With excellent mounting capabilities, it’s versatile for cracks, gaps, and thermal/acoustic insulation. Environmentally friendly and free of CFCs, it’s a reliable choice for building safety and efficiency.
Features & Benefits:
Self-extinguishing.
Superior thermal insulation properties.
Closed-cell structure, waterproof, and dimensionally stable.
Excellent gap-filling and mounting performance.
Easy-to-use, quick application.
High expansion ratio for deep cavity filling.
Effective soundproofing and thermal insulation.
Strong adhesion to most construction materials.
Long-term stability (no shrinkage or cracking).
Application:
Installation of fire-rated doors and windows.
Fire and smoke barrier sealing in walls, floors, and ceilings.
Sealing service penetrations and roof openings.
Fireproof filling and bonding in pipe penetrations, electrical conduits, and HVAC systems.
Insulation of cold storage and industrial facilities requiring fire-resistant materials.
Technical parameters:
| Yield | 55L |
| Shrink | None |
| Density | 22 kg/m³ |
| Cellular Structure | 60-65% open cell |
| Tensile adhesive strength | 136kPa |
| Shear strength | 154kPa |
| Thermal conductivity(35℃) | 0.034W/(m·K) |
| Fire Retardant Grade(DIN 4102-1) | B2 |