Zhengzhou Bilin New Materials Manufacturing Co., Ltd.
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Description:
BILIN B2 Polyurethane Foam is a flame-retardant, DIN 4102 B2-certified sealing foam that stops burning once the fire source is removed. Ideal for bonding, fixing, soundproofing, and thermal insulation, it effectively seals gaps, cracks, and joints while preventing smoke/gas penetration. This one-component, CFC-free foam expands upon application, offering strong adhesion and durability for construction projects.
Features & Benefits:
Self-extinguishing – Complies with fire safety standards.
B2 Fire Rating (DIN 4102-1) – Certified flame-retardant performance.
Enhanced Insulation – Superior thermal and acoustic properties.
Closed-Cell Structure – Water-resistant, rigid, and dimensionally stable.
High Expansion Rate – Fills cavities completely for airtight sealing.
Excellent Adhesion – Bonds securely to most construction materials.
Easy Application – Compatible with foam guns or straw dispensers.
No Shrinkage – Maintains stability and sealing integrity over time.
Sound Dampening – Reduces noise transmission effectively.
Application:
Fire-rated door and window installations.
Fire and smoke barriers in walls, floors, and ceilings.
Sealing roof penetrations and construction gaps.
Pipe and duct penetrations requiring fireproofing.
Insulation of refrigeration rooms and cold storage areas.
General filling, bonding, and sealing in fire-sensitive environments.
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 |