* 20+ Years Experience
* 3 Production Areas
* 6 Production Lines
* Annual Production 900,000 m3
* FM, CE, UL, Class 1, Class 0 Approved
* ISO9001/14001/45001 Certified
* ROHS, REACH Tested
Advantages of Rockwool
1. Excellent Thermal Insulation
Glass wool has a low thermal conductivity, meaning it It can effectively prevent heat transfer and has good thermal insulation effect. It helps maintain comfortable indoor temperatures, reducing the need for extensive heating or cooling, and ultimately saving on engergy bills.
2. Fire Resistance
One of the significant advantages of glass wool is its fire resistance,Glass wool is classified as a Class A fire-resistant material that maintains its shape and performance in high-temperature environments. It does not contribute to the spread of flames, making it a safe choice for insulating buildings.
3. Acoustic Insulation
Aside from thermal insulation, the fiber gap of glass wool can absorb sound waves. It can significantly reduce noise transmission between rooms,and is suitable for acoustic treatment of walls, ceilings and other places creating a quieter and more comfortable living or working environment.
4. Mold and Moisture Resistance
Glass wool is resistant to moisture and does not promote mold or mildew growth. This ensures the longevity of the insulation and helps maintain indoor air quality.
5. Cost Effective
Compared to some other insulation materials, glass wool is cost-effective. It provides a good balance between insulation performance and affordability, making it a practical choice for various projects.




Item | Unit | Index | Standard |
Density | kg/m3 | 64-96 | GB/T 13350-2000 |
Average fiber dia | µm | <8.0 | GB/T 13350-2000 |
Water content | % | <1 | GB/T 3007-1982 |
Grade of Combustibility | Non-combustible grade A | GB 13350-2000 | |
Max. working temp | ºC | 400 | GB/T 13350-2000 |
Thermal conductivity at 24oºC | w/m.k | 0.32 | GB/T 10294-1988 |
Mildew resistance | Mildewproof | ASTM C665 | |
Moisture absorption | % | <3 of weight (49oC, relative humidity 90%) | ASTM C1104 |
Sound absorption coefficient | 96kg/m3 2000HZ | GBJ 47-83 | |
Slag inclusion Content | % | <0.3 |
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* With over 20 years of unmatched experience, we bring expertise and innovation to the insulation industry.
* Our expansive facilities feature 3 dedicated production areas, ensuring efficient manufacturing and quality control.
* Equipped with 6 state-of-the-art production lines, we maintain a steady output to meet global demands.
* Our impressive annual production capacity reaches a staggering 900,000 m³, catering to diverse market needs.
* Our products are rigorously tested and approved with FM, CE, UL, Class 1, and Class 0 certifications, affirming our commitment to quality and safety.
* We are proudly ISO9001, ISO14001, and ISO45001 certified, demonstrating our dedication to maintaining high standards in quality, environmental management, and occupational health and safety.




A: Yes. Samples are free and available.
Q2. What about the leading time?
A:Sample needs 1-3 days, mass production time needs 1-2 weeks after receive your prepayment.
Q3. What about the payment terms?
A:The main payment terms are T/T and L/C.
Q4. Do you have any MOQ limit for order?
A: 1*20GP with Bellsafe's usual sizes.
Q5. What is your advantage?
A: We have entity factory, competitive price, good production quality, fast delivery and good service.
Q6. How to proceed an order ?
A: Firstly let us know your requirements or application. Secondly We quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places deposit for formal order. Fourthly We arrange the production.
Q7. Is it OK to print my logo on the product?
A: Yes. Please confirm the design and inform us formally before our production.
