* 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
Six Advantages: Experience the unparalleled benefits of our insulation material.
1. Splendid Surface Finish: Our Nitron-Bubble NBR/PVC insulation material features a remarkably flat and smooth surface, exuding an aura of luxury and high-grade quality.
2. Superior Oxygen Index (OI) Critical Value: Our insulation ensures excellent fireproof capabilities due to its high oxygen index, providing enhanced safety.
3. Remarkable Smoke Density Class: Enjoy peace of mind with our insulation's low smoke density and minimal smog thickness, offering exceptional performance even under fire conditions.
4. Long-lasting Heat Conductivity (K-Value): With our Nitron-Bubble NBR/PVC material, experience a stable and long-term K-value, guaranteeing prolonged product lifespan and efficiency.
5. Exceptional Moisture Resistance (u-Value): Boasting a high moisture resistance factor of u≥15000, our insulation effectively combats condensation.
6. Robust Temperature and Anti-Aging Performance: Our Nitron-Bubble NBR/PVC insulation material excels in anti-ozone, anti-insolation, and anti-UV capabilities, promising a long lifespan.
TECHNICAL DATA | ||
PHYSICAL PROPERTIES | VALUE / ASSESSMENT | TEST METHOD |
Temperature Range | (-50) ~110°C | GB/T 17794-2021 |
Density | 40~70KGS/ M3 | GB/T 6343-2009 |
Thermal Conductivity | -20ºC. , ≤ 0.028W/M.K 0ºC. , ≤ 0.030W/M.K 25ºC. , ≤ 0.033W/M.K | GB/T 10295-2008 |
Water Vaport Permeability | ≥10000 | GB/T 17794-20216.8 GB/T 17146-2015 |
Fire Retardant | Class 1 Class 0 HF-1, V-0 | BS476: PART 7 BS476: PART 6 UL94 |
FM Approval | Approved | FM4924 |
RoHS | Comply | RoHS 2015/863 |
REACH | Comply | REACH 1907/2006 |
Oxygen Index | ≥32% | GB/T 17794-2008 |
Classification Smoke | ≤75 | GB8624-2012 |
Smoke Toxicity | Accords with Class ZA3, Excellent | GB/T 20285-2006 |
Water Absorption | ≤10% | GB/T 17794-2021 |
Tear Stability | ≥3.5N/cm | |
Dimension Stability | 105ºC,7DAYS,≤10% | |
Compress Resilience | Compress 50% for 72H, Retract≥70% | GB/T 17794-20216.9 GB/T 6669-2008 |
Noise Reduction | High Reach to 30 (35) DB(A) | GBT/20247-2006 |
Resistance to Fungi | Zero growth | ASTM G21-15 |
Resistance to Agent Chemical | Stable performance to agent chemical used as building material | |
Resistance to UV Radiation | No crack on surface in 460 hours | |
Resistance to Ozone | 202 MPA, 200H, No Cracks |

More Items Available:

* 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.

Our rubber foam insulation materials meet stringent Class 1, Class 0, FM, and UL fireproof standards, backed by our ISO9001, ISO14001, and ISO45001 certifications, ensuring you receive only the best.



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.
