Kingflex
Engineered for high thermal resistance, premium condensation prevention, and certified safety compliance across municipal infrastructure.
As the political and technological center of Germany, Berlin drives structural decarbonization policies across Europe. The Berlin Energy and Climate Protection Act (EWG Bln) demands strict carbon neutrality by 2045, positioning commercial development and HVAC system design at the center of the regulatory focus. Modern facilities require insulation systems with low heat loss indices and superior durability.
Our premium closed-cell NBR/PVC elastomeric rubber foam insulation rolls and sheets are uniquely qualified to meet these rigid standards. They play an essential role in municipal district heating renovations, high-tech manufacturing cleanrooms in Berlin-Adlershof (WISTA), and large-scale data center developments in the surrounding Brandenburg metropolitan area.
By preventing condensation and protecting piping infrastructure, our products extend the operating life of key HVAC assets, saving gigawatts of power in cooling systems across Germany.
Globally, the market for elastomeric foam insulation is expanding rapidly, driven by strict energy performance regulations like the European Union's Energy Performance of Buildings Directive (EPBD). Industrial piping and structural envelopes account for a large portion of energy loss in process plants, chemical manufacturing, and maritime platforms.
Compared to traditional glass fiber and mineral wool solutions, closed-cell NBR insulation provides superior water vapor transmission resistance, preventing moisture ingress and eliminating the risk of Corrosion Under Insulation (CUI).
With an annual output of over 600,000 cubic meters, Kingflex supports projects across 66 countries, ensuring standard compliance, sustainable logistics, and high-performance material engineering.
Why elastomeric systems lead the industry in thermal retention, moisture control, and flame resistance.
Maintains a thermal conductivity of λ ≤ 0.034 W/(m·K) at 0°C. Minimizes thermal bridging, saving energy in both chilled water systems and heating pipelines.
The closed-cell configuration (≥ 98% closed cells) yields a vapor resistance coefficient (μ) of over 10,000. Prevents moisture ingress without requiring external jackets.
Meets international fire safety standards including BS 476 Part 7 Class 1, UL94 V-0, and CE Euroclass classification, reducing smoke toxicity and vertical flame spread.
| Performance Indicator | Kingflex Rubber Foam Sheet / Pipe Specifications | Testing Standards & Classifications |
|---|---|---|
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.038 W/(m·K) at 40°C | ASTM C518 / DIN EN 12667 |
| Moisture Resistance (μ) | ≥ 10,000 (Built-in vapor barrier prevents degradation) | DIN EN 12086 / ISO 1663 |
| Service Temperature Range | -40°C to +105°C (Flexible cryogenic series: -196°C to +125°C) | ASTM C411 / EN 14706 |
| Density Range | 40 - 55 kg/m³ (Uniform micro-cellular structure) | ASTM D1622 / EN 1602 |
| Fire & Smoke Performance | Class 0 & Class 1 / Euroclass B-s3-d0 / UL94 V-0 | BS 476 Parts 6 & 7 / EN 13501-1 / UL 94 |
| Environmental Safety | Halogen-Free, Zero ODP, Low VOC Emission, REACH & RoHS Compliant | ISO 14001 / EU Directives |
Enhanced protection variants engineered for mechanical strength, weather resistance, and high ultraviolet exposure.
A leading manufacturing and trading combo for high-quality thermal insulation systems.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our R&D and main production centers are based in Dacheng, China—a hub for green building material development. We focus on energy conservation, research, development, and high-performance production.
Kingflex is established by the Jinwei Group, which brings over 40 years of industry experience. Founded in 1979, Jinwei Group was a pioneer in thermal insulation manufacturing in northern China.
Today, our facility runs 5 large-scale automated assembly lines. With an annual production capacity exceeding 600,000 cubic meters, we serve as an authorized production partner for municipal energy and petrochemical departments.
"We provide complete solutions covering insulation consultancy, custom research and development, installation guidance, and dependable after-sales support to lead the development of the global building materials industry."
Designing modern materials to meet European decarbonization targets by 2030 and 2050.
Developing bio-sourced elastomeric compounds to replace petroleum-based NBR/PVC polymers. This reduces the embodied carbon footprint of construction materials without sacrificing fire retardancy or physical flexibility.
Refining halogen-free elastomeric compounds to eliminate chlorine and bromine. This ensures zero acidic smoke emissions during fires, exceeding standard building safety specifications for public transportation, metro systems, and schools.
Integrating digital twin technology and BIM (Building Information Modeling) objects into design layouts, enabling architects in Berlin and across Europe to accurately project energy conservation rates and lifecycle performance.
Third-party testing verifies compliance with global industrial, chemical, and building safety standards.
Every batch of elastomeric foam undergoes rigorous testing before shipping. Our laboratory is equipped with thermal flow meters, water vapor permeability analyzers, and specialized combustion chambers.
Our materials hold international certifications including BS 476, CE, REACH, RoHS, UL94, and ASTM. This guarantees compliance with European environmental and building safety standards.
High-performance elastomer integration across diverse HVAC, mechanical piping, and structural applications.
Large-scale municipal and commercial properties in Berlin utilize HVAC air systems that are vulnerable to energy loss and condensation. Kingflex NBR/PVC sheets offer flexible, secure cladding for air ducts, reducing heat transmission and preventing mold growth in humid mechanical spaces.
Cold-water process lines require reliable, continuous insulation to prevent condensation. The closed-cell structure of our rubber rolls acts as an integrated vapor barrier, protecting steel and copper pipes from Corrosion Under Insulation (CUI).
For applications down to -196°C, such as liquefied gas processing, standard elastomeric foam can become brittle. Kingflex's cryogenic insulation system uses multi-layered elastomeric layers to handle thermal stress, maintaining insulation performance in extreme temperatures.
Industrial machinery spaces and mechanical rooms require thermal insulation that also dampens sound. Our elastomeric foam helps reduce structural vibrations and equipment noise, contributing to quieter indoor environments.




Standardized sizing charts for Black Rubber Foam Sheet Rolls and Piping Insulation Systems.
Ideal for large-diameter pipes, rectangular duct ventilation layouts, storage tanks, and irregular structural components.
Pre-formed cylindrical profiles designed for fast installation on piping systems, valves, and elbows.




Proven execution across HVAC, cold chain logistics, and petrochemical plants.




Explore our main range of NBR/PVC elastomeric materials, engineered to support both light construction and heavy industrial applications.
Technical guidance and application insights for engineering teams, contractors, and building designers.
Contact our technical sales team for comprehensive specification documents, material samples, and direct factory pricing.
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