Juhuan B2 Fire Rated PU Foam Self Extinguishing Sealant for Gaps and Joints
JUHUAN B2 Fire Rated PU Foam is a high-performance, one-component self-extinguishing polyurethane expanding foam specially developed for fire-resistant filling, sealing, bonding, and insulation applications. Designed to meet professional construction requirements, it provides reliable fire protection performance while maintaining excellent adhesion and insulation properties.
The advanced flame-retardant formulation helps slow down the spread of fire and provides additional safety protection in building structures. It is ideal for filling gaps, joints, cavities, and penetrations where fire resistance and sealing performance are required.
JUHUAN B2 Fire Rated PU Foam is widely used for fixing and insulating door and window frames, sealing wall penetrations, insulating electrical outlets, and protecting hot and cold water pipes. After curing, it forms a durable foam structure with excellent thermal insulation, acoustic insulation, and long-term dimensional stability.
The product is available with three valve options to meet different construction requirements, including gun grade, straw application, and gun/straw dual-use versions. It uses environmentally friendly propellant technology without ozone-depleting gases.
- Overview
- Recommended Products
- B2 class fire rated polyurethane foam
- Self-extinguishing flame retardant performance
- Excellent filling, sealing, and bonding capability
- Suitable for fire-resistant construction applications
- Strong adhesion to common building materials
- Excellent thermal and acoustic insulation
- Environmentally friendly propellant system
- Multiple valve options available
- Fire-resistant door and window installation
- Door and window frame fixing
- Wall penetration sealing
- Electrical outlet insulation
- Pipe insulation and sealing
- Construction joint filling
- Building fire protection projects
- General gap filling applications
- Enhanced fire safety performance
- Low expansion pressure for controlled installation
- Stable foam structure after curing
- Improves building insulation efficiency
- Suitable for professional contractors
- Easy application with multiple valve systems
- OEM & ODM customization available


| PU FOAM TYPICAL PROPERTIES | ||||||||
| Condition: 22.5°C, 47%R.H. | ||||||||
| Product |
Tack free time/min |
Cutting time/min |
Application temperature(C) |
Tempreture resistance(C) |
Compressive strength/kgf |
Volume/L | Shrink | Flammability |
| K10 | 5~15 | ≥60 | -15~+35 | -40~+80 | 20~25 | 45~50 | None | B2 |
| K20 | 5~15 | ≥60 | -10~+35 | -40~+80 | 15~20 | 40~45 | None | B2 |
| K30 | 5~15 | ≥30 | -10~+35 | -40~+80 | 15~20 | 35~40 | None | B3 |
| K40 | 5~15 | ≥30 | -5~+35 | -40~480 | 10~15 | 30~35 | None | B3 |
| K50 | 5~15 | ≥30 | 0~+35 | -40~+80 | 10~15 | 25~30 | None | B3 |
| K88 | 5~15 | ≥30 | -10~+35 | -40~+80 | 15~20 | 65~70 | None | B3 |
| B1 | 5~15 | ≥60 | -10~+35 | -40~+80 | 15~20 | 35~45 | None | B1 |
| B2 | 5~15 | ≥60 | -10~+35 | -40~+80 | 15~20 | 35~45 | None | B2 |
Specifications
| Place of Origin | Linyi Shandong, China |
| Brand Name | JUHUAN |
| Model Number | B2 |
| Certification | ISO9001, ISO45001, ISO14001, SGS, MSDS, CE |
| Shelf life | 12 months store in 25°C or below |
| Volume | 750ml, 500ml, 300ml |
| Packing | 12pieces/carton, 15pieces/carton, 6pieces/carton, 6pieces/carton, or customized |
| Delivery time | 7-15 days |
Key Features
Applications:
Advantages





FAQ:
Q1:Are you factory?
Al: yes, we are factory.
02:Can I do an OEM?
A2:Yes, we do the brand, logo as your requirements
Q3:What other products do you have?
A3:. Besides our mainly products Sprav polyurethane foam, and siicone sealant, we also have many other products, such as polyurethane foam dleaning agent, spray paint, lubricant, liquid nails, contact adhesive, marble adhesive , building anchorgae glue, epoxy resin AB glue etc.
Q4:Why we choose you? What is your strength ?
A4.With zn years experlences in this field, we are a professional supplier of the wvell-know eustomers. our fadlities confomm to the standard audit requirement and our products meet the certification terms from diferent countries and areas
Q5:What is your sample policy
A5. We can supply 23 sampies for free, but aa cnis is aerosol products with pressurized nas. ie is dangerous goods, we only supply the Cured sample And the freighnt cost need to be prepaid by customers.
Q6: Agent's wanted?
A6: Welcome general agent all over the world.