China JF-PB91 Fire Rated PU Foam Suppliers - B1 Fire-Rated, Airtight & Water-Resistant Fire Barrier Factory
Features & Specifications
Excellent adhesion and filling capacity
Efficient seal against smoke and gas
Strong hardness after cured
Technical Performance Parameters
| Condition: 22.5℃, 47% R.H | |
|---|---|
| Tack free time / min | 6.8 |
| Cutting time / min | 80 |
| Expansion % | 220% |
| Compressive strength / kgf | 15 |
| Dimensional stability | <3% |
| Yield | 35-40 |
| Fire class (DIN4102) | B1 |
| Temperature resistance | -35℃ — +80℃ |
| Oxygen index | >30% |
Frequently Asked Questions
What are the primary features of this polyurethane foam?
This polyurethane foam is designed with three core features: excellent adhesion and filling capacity, an efficient seal against smoke and gas, and high hardness once fully cured.
What is the fire class rating of this product?
The product meets the B1 Fire Class standard according to DIN4102 regulations and features a high oxygen index of over 30%, providing superior flame-retardant properties.
How fast does the foam dry and become ready to cut?
Under testing conditions of 22.5℃ and 47% relative humidity, the tack-free time is approximately 6.8 minutes, and the cutting time is around 80 minutes.
What is the expansion rate and yield performance?
The foam offers a high expansion rate of 220% and delivers a stable yield range of 35-40, making it highly material-efficient.
What is the operating temperature range for this foam?
Once cured, the foam exhibits excellent temperature resistance, maintaining its structural integrity in temperatures ranging from -35℃ to +80℃.
What is the dimensional stability and strength of the cured foam?
The foam exhibits strong post-cure stability with a dimensional stability variance of less than 3% and a compressive strength of 15 kgf.












