Kingflex
Kingflex
Engineered high-density elastomeric rubber foams, cryogenic structural barriers, and professional soundproofing components.
The rising demand for structural soundproofing and thermal optimization across heavy industries and green architecture.
Modern structural engineering is experiencing an unprecedented convergence of thermal regulation and acoustic damping requirements. Globally, the rigid insulation sound absorption market has expanded beyond traditional drywall systems to integrate high-performance NBR/PVC elastomeric rubber composites, mineral rock wool boards, and cryogenic thermal barriers. According to recent infrastructure development initiatives, urban density and strict HVAC regulatory codes require multi-functional materials that offer high Noise Reduction Coefficients (NRC) alongside superior thermal resistivity (R-value).
In heavy industrial contexts—specifically chemical manufacturing, cryogenic energy transport (LNG), and commercial HVAC distribution network design—noise control is no longer just a comfort standard. It is a critical compliance issue under global occupational health directives (such as OSHA and EU OSHA regulations). Traditional glass fibers are being phased out in systems subject to high moisture exposure or vibration in favor of closed-cell elastomeric structures, which prevent mechanical degradation, block sound transmission paths, and resist moisture intrusion.
China's dominance in the global green building materials market is rooted in localized supply chain integration and raw material proximity. The city of Dacheng, Hebei Province, stands out as the capital of green-building materials in China. By centralizing core raw material synthesis, precision extrusion machinery manufacturing, and certified test laboratories within a unified regional hub, manufacturers like Kingflex achieve unparalleled manufacturing efficiencies.
China-based factories use highly automated, continuous double-belt and horizontal extrusion foaming lines. This automation reduces production time, maintains density consistency, and stabilizes physical cell geometry. Global procurement teams benefit from reduced lead times, custom OEM sizing, and pricing that traditional regional manufacturers cannot match.
Decades of manufacturing leadership, engineering innovations, and global compliance certifications.
Kingflex Insulation Co., Ltd. is a leading manufacturing and trading combo for high-end thermal insulation products. Headquartered in Dacheng, China, we focus on energy-saving, environmentally friendly insulation systems, leading the building materials industry through technical consultations, custom R&D, and post-sale installation guidance.
Established by the Jinwei Group, our operational history dates back to 1979. With over 40 years of continuous history, Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for China's industrial foaming and thermal protection sectors.
Operating 5 large automatic assembly lines, our output exceeds 600,000 cubic meters annually. Designated by China's Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry, we are a trusted industrial system provider for energy conservation and sound reduction.
At the core of Kingflex is a dedicated, highly trained workforce driven by a shared vision of product excellence. Our operations combine the expertise of 8 professional R&D engineers, 6 international sales consultants, and 230 skilled production technicians.
This deep human capital allows us to customize product parameters—such as matching unique Sound Transmission Class (STC) ratings or achieving extreme low-temperature stability in cryogenic systems—ensuring our solutions meet the specific demands of each client.
Optimized configurations engineered for diverse industrial and architectural installations.
Eliminates fan reverberation and airflow noise inside rectangular and circular metal duct systems. Provides condensation control on pipe surfaces and maintains structural integrity in high-vibration systems.
Designed for ultra-low temperature cryogenic systems, LNG storage tanks, and high-altitude transport. Protects systems down to -200°C while preventing structural embrittlement from thermal shock.
High-density rubber shock pads designed for structural floor isolation, equipment mounts, and vibration damping. Reduces impact noise transmission across architectural partitions.
| Material Class | Typical Thickness | Density Range | Thermal Cond. (Avg) | Primary Application |
|---|---|---|---|---|
| NBR/PVC Elastomeric Foam | 6mm - 50mm | 40 - 55 kg/m³ | ≤ 0.034 W/(m·k) at 0°C | Chilled water systems, HVAC duct linings, low-frequency sound absorption |
| Cryogenic Rubber Foam | 13mm - 40mm | 45 - 60 kg/m³ | ≤ 0.028 W/(m·k) at -150°C | LNG pipelines, low-temperature petrochemical processing systems |
| Rock Wool Board | 25mm - 150mm | 80 - 150 kg/m³ | ≤ 0.038 W/(m·k) at 25°C | High-temperature industrial ovens, partition soundproofing, fire protection barriers |
| Gym Shockproof Rubber Pad | 5mm - 20mm | ≥ 700 kg/m³ | N/A (Structural Damping) | Acoustic decoupling for floors, sports facilities, heavy equipment isolation |
Real-time facility snapshots displaying our testing processes, sample analysis, and system verification.
What procurement officers look for when sourcing large-scale acoustic insulation components.
Global procurement teams in the commercial construction, marine, and energy sectors prioritize supply chain traceablity and third-party certifications. Selecting an insulation partner requires proof of compliance with international testing standards, such as BS 476, CE, REACH, RoHS, UL94, and ASTM. These certifications ensure the material will perform under actual fire hazards, prevent toxic outgassing, and resist degradation under mechanical stress.
Additionally, modern green building certifications like LEED (Leadership in Energy and Environmental Design) place significant emphasis on the environmental profile of raw materials. High-density elastomeric foaming processes that avoid chlorofluorocarbons (CFCs) and volatile organic compounds (VOCs) help projects meet sustainable design goals. The industry is moving toward integrated, hybrid thermal-acoustic systems. Sourcing a single material that offers both thermal barrier performance and acoustic isolation simplifies installation logistics, reduces labor costs, and minimizes construction waste.
Verified installation sites, logistics tracking, and real client communication highlights.
We maintain transparent communications with global engineering clients. Our technical customer support teams provide real-time updates, shipment scheduling, and material density calculations, ensuring project specifications are met before delivery.
Our acoustic and thermal insulation systems are used in diverse global applications, including HVAC duct soundproofing, cold water pipeline cladding, and acoustic wall panels. Here is a look at recent project site installations:
Technical dimensions and performance profiles for Kingflex elastomeric foam sheets and pipe insulation systems.
Technical answers regarding material performance, certifications, and product installation.
It is primarily used for central HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure prevents moisture accumulation and condensation while dampening structural and airborne noise.
Yes, our rubber foam insulation products are flame retardant. They comply with international fire safety standards, including BS 476 Class 0 and Class 1, and meet the safety requirements for commercial building and industrial projects.
Rubber foam is flexible, closed-cell, and moisture-proof, making it ideal for HVAC, chilled water systems, and low-frequency sound absorption. Rock wool is highly temperature-resistant and fireproof, making it suitable for high-temperature industrial pipelines and firewall applications.
Yes, we support comprehensive OEM and ODM services. We can customize sheet dimensions, pipe diameters, wall thicknesses, and density properties to meet specific project specifications and acoustic insulation requirements.
Our products have passed BS 476, CE, REACH, RoHS, UL94, and ASTM testing, ensuring compliance with global standards for safety, performance, and environmental quality.
Yes, all Kingflex products are manufactured with strict production batch codes, providing complete traceability from raw material processing to final delivery.
We can manufacture rubber foam sheet rolls in thicknesses ranging from 6mm up to 50mm, accommodating a variety of thermal and acoustic insulation designs.
Under normal operational conditions and with proper installation, our rubber foam pipes and boards have an expected service life of 10 to 15 years, resisting structural sagging and moisture degradation.
High-density sheets, custom-dimensioned tubing, and specialty adhesives for complete installation integrity.
