Direct supply from certified China manufacturers. Engineering-grade closed-cell structure for thermal barrier and decibel damping.
For modern B2B project procurement, estimating acoustic raw materials through guesswork leads to either excessive budgets or poor acoustic attenuation performance. This is where an Acoustic Foam Calculator becomes an indispensable tool. It translates architectural volume, target RT60 (Reverberation Time), and noise coefficient limits into exact material thickness, density, and area parameters.
By evaluating the Sound Absorption Coefficient ($\alpha$) and Noise Reduction Coefficient (NRC) relative to your facility's square footage, the calculator determines whether your application requires NBR/PVC elastomeric rubber foam sheets with a thickness of 6mm or up to 50mm. Using this data prevents excess waste and guarantees compliant noise dampening in hotels, hospitals, machine rooms, and industrial plants.
High performance is built on calculated acoustics and proven thermodynamic metrics.
Maintains consistent 40-55 kg/m³ density control, generating high-performance sound absorption coefficients across mid-to-high frequencies.
A closed-cell rate exceeding 98% keeps moisture out. This maintains long-term thermal insulation and stops sound transmission from degrading.
Meets strict international safety standards. It self-extinguishes if ignited, offering vital protection for utility rooms and high-occupancy structures.
UL94, ASTM, CE, and RoHS certified. Every shipment is fully traceable back to our production run, ensuring reliable quality control.
Established by the Jinwei Group, which carries more than 40 years of manufacturing history since its founding in 1979, Kingflex Insulation has consistently stood at the forefront of the green thermal and acoustic insulation sector in China. As the pioneer manufacturer of thermal insulation materials north of the Yangtze River, we developed deep-domain expertise in molecular formulation and raw material integration.
Located in the famous green-building materials hub of Dacheng, China, our advanced facility functions as a zero-waste, energy-saving ecosystem. We provide customers with full acoustic consultancies, tailored calculation data, design services, and post-sale technical supervision.
Formulated using premium NBR/PVC blend. Designed to perform from sub-zero cryogenic systems to high-temperature HVAC lines.
| Specification Metric | Black Rubber Foam Sheet Roll | Black Rubber Foam Insulation Pipe |
|---|---|---|
| Material Formulation | Premium NBR/PVC Blend | Premium NBR/PVC Blend |
| Standard Thickness | 6mm to 50mm | 9mm to 40mm |
| Internal Diameter (ID) Range | N/A (Flat Sheet Format) | 6mm to 114mm |
| Density Range | 40 to 55 kg/m³ | 40 to 55 kg/m³ |
| Thermal Conductivity ($\lambda$) | ≤ 0.034 W/m·K at 0°C | ≤ 0.034 W/m·K at 0°C |
| Service Temperature Limit | -40°C to 105°C (Cryogenic variants down to -196°C) | -40°C to 105°C (Cryogenic variants down to -196°C) |
| Acoustic Performance | High transmission loss; excellent structural vibration dampening | Excellent airborne noise decoupling on high-velocity pipes |
Procuring thermal and acoustic protection at scale requires a stable, integrated supply chain. Operating 5 high-speed, fully automated assembly lines, Kingflex meets large-volume commercial orders with minimal lead times. Our annual capacity surpasses 600,000 cubic meters, making us a designated manufacturing supplier for the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
This massive production scale keeps raw material costs competitive. We purchase high-quality polymers in bulk and optimize our energy use during the vulcanization and foaming steps. This ensures global distributors and contractors get direct factory pricing without sacrificing product performance or compliance.



Different markets have strict fire and chemical regulations for building products. Kingflex products undergo regular testing to meet global standards. We hold approvals for BS 476 (Class 0 and Class 1), which is widely required in Commonwealth markets. For the North American market, our materials are evaluated under ASTM testing protocols for surface burning properties and smoke development indexes.
Additionally, our production lines follow European environmental regulations, including CE, REACH, and RoHS. This confirms our elastomeric foam is free from halogenated fire retardants, heavy metals, and ozone-depleting substances, ensuring compliance and peace of mind during customs clearance and local installation inspections.
Independently tested by third-party testing centers to meet global safety standards.




How modern engineering utilizes advanced elastomeric foams for high-stress applications.
AI servers require high-power liquid and air cooling. Closed-cell foam prevents condensation on cold supply pipes, protecting electrical components from short-circuiting.
As liquefied gas and hydrogen systems grow, specialized low-temperature elastomeric foam remains flexible at cryogenic temperatures down to -196°C, preventing structural steel cracking.
LEED and BREEAM certifications reward buildings with low VOC emissions. Our halogen-free, fiber-free formulation satisfies indoor air quality criteria, earning project credits.
From rapid high-volume pipe supply to specialized cryogenic installations.




Transparent communication with purchasing offices around the world.





Our NBR/PVC elastomeric foam handles diverse challenges, from residential water lines to heavy chemical plants.
Insulates chilled and hot water pipes, ductwork, and air handlers. Closed-cell structure stops condensation, prevents corrosion under insulation (CUI), and limits heat loss.
Used as acoustic panels, ceiling linings, and floor underlayments. It dampens echoes, reduces structural impact noise, and blocks low-frequency vibrations in busy environments.
Special cryogenic grades support LNG shipping terminals and chemical systems, providing essential thermal resistance down to -196°C without becoming brittle.




Our systematic workflow ensures high-density, flexible, and fire-resistant performance.












Our broad selection of elastomeric foam and rock wool insulation matches a wide range of engineering requirements.

High flexibility, closed-cell NBR/PVC composition tailored for mechanical copper piping systems.

Formulated with raw compounds that shield active industrial metal lines from water exposure and atmospheric corrosion.

Durable insulation with high elongation properties, making it easy to fit over elbows and t-joints.

Standard industrial pipe sleeve featuring a high resistance factor ($\mu \ge 10,000$) to control heat loss.

General-purpose thermal sleeve for hot water pipes and commercial plumbing.

Custom designed for chillers and central air handlers to prevent condensation drippage.

Premium insulation system designed for heavy industrial utility piping and petrochemical process lines.

Engineered to absorb stress and prevent cracking in cryogenic systems operating down to -196°C.

Highly durable thermal insulation designed to handle temperature extremes in outdoor pipe bridges.

Low-temperature insulation tailored to protect LNG terminal piping from heat ingress.

High-density stone wool board featuring excellent fire performance for high-temperature furnace walls.

Flexible, wire-mesh reinforced rock wool blanket suitable for large tanks and industrial exhausts.
Find answers to common questions about materials, calculations, certifications, and wholesale ordering.
High-integrity elastomeric solutions for demanding HVAC, mechanical, and low-temperature systems.
Contact our engineering team to calculate your material list. We provide custom quotes, acoustic calculations, and direct-from-factory logistics solutions.
Request Factory Technical Consultation