Intumescent Fire Retardant PU Foam Sealant Soundproof and Fireproof Expanding Foam for Fire Doors

Description:
This product is non-flammable with extremely strong flame retardancy, meeting the requirements of DIN 4102 B2 standard. It can stop burning immediately when the fire source is evacuated, with reliable safety performance. It has functions such as bonding, fixing, installation, sound insulation and heat insulation, and is an ideal product for filling and sealing fireproof gaps, which can effectively prevent smoke leakage.
Features & Benefits:
- Having self-extinguishing characteristics, reaching DIN 4102-1 B2 fire rating
- Excellent insulation factor
- Closed-cell structure with water resistance and no water absorption
- Hard texture and strong stability
- Excellent installation performance
- Easy operation
- High expansion rate
- Good sound and heat insulation effect
- Firm adhesion
- No shrinkage and strong stability
Application:
- Used for the installation and fixation of fireproof doors and windows
- Fire and smoke retardant sealing between walls, floors and ceilings
- Sealing treatment of all openings in roof buildings
- Various filling and bonding applications requiring flame retardant or fire-rated levels such as pipe penetration filling and cold store insulation
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 |
Q1: Are you a factory?
A1: Yes, we are a factory. Our plant area is about 30,000 square meters, and our production capacity is 10 containers per day, supporting on-time delivery.
Q2, Can I visit your factory?
A2: Of course, welcome to visit our factory in Zhengzhou, Henan.
Q3: Do you provide OEM/private label service?
A3: Yes, we do. In addition, we also provide free design and MOQ for private label sealants.
Q4: Can I get free samples?
A4: We provide free samples. For more details, please feel free to contact us.
Q5: Need an agent?
A5: General agents all over the world are welcome.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.








