Explore our top-tier certified flexible elastomeric rubber foam sheets, tubes, and piping systems designed for maximum energy efficiency.
In the modern industrial paradigm, thermal optimization is no longer just a functional necessity—it is an economic and environmental imperative. As commercial infrastructures expand and strict global HVAC standards (like ASHRAE 90.1 and European EN 12828) take full effect, elastomeric black color rubber foam insulation sheet rolls have emerged as the premier medium for thermal barrier engineering.
By integrating synthesized Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) matrix structures, manufacturers produce closed-cell foam that exhibits outstanding low thermal conductivity (λ ≤ 0.034 W/m·K at 0°C) and an exceptional moisture resistance factor (μ ≥ 10,000). These technical thresholds ensure long-term structural resilience in critical systems, protecting pipes and ducts from thermal loss, ambient dampness, and moisture-induced corrosion.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for high-end thermal insulation products. With our research development and production base situated in Dacheng, China—the globally recognized capital of green-building materials—we operate as a pioneering energy-saving and environmental-friendly enterprise.
Established by the esteemed Jinwei Group, which boasts a rich heritage dating back to 1979, Kingflex stands as the first manufacturer of thermal insulation materials north of the Yangtze River. Across four decades of continuous industrial innovation, we have developed a collaborative workforce consisting of 8 professional engineers in our dedicated R&D Department, 6 certified international trade specialists, and 230 highly skilled factory technicians.
Harnessing advanced automation and digital logistics to ensure continuous, high-volume supply and uncompromised quality.
Kingflex currently operates 5 large-scale automated assembly lines. Our facilities yield an annual production capacity exceeding 600,000 cubic meters. This immense output enables us to serve as a designated supplier for major state projects under ministries of Energy, Electric Power, and Chemical Industry.
With an independent R&D wing operating standard testing labs, we monitor every step of the continuous vulcanization and foaming process. By maintaining control over the compounding process, we guarantee uniform cell size distribution, fire safety performance, and stable dimensions.
Our elastomeric insulation solutions strictly comply with global quality and safety guidelines. The products hold BS 476, CE, REACH, ROHS, UL94, and ASTM certifications, enabling seamless integration into complex structural systems worldwide.



Designed to deliver reliable thermal performance and anti-condensation protection under extreme physical conditions.
| Technical Property | Value / Parameter |
|---|---|
| Material Formulation | Elastomeric Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) Blend |
| Thickness Range | 6mm to 50mm |
| Core Density | 40 - 55 kg/m³ |
| Service Temperature Limits | -40℃ to 105℃ (Suitable for Cryogenic and Solar Thermal cycles) |
| Closed-Cell Ratio | Over 98% (Minimizes liquid ingress and convection loss) |
Our advanced continuous vulcanization lines ensure uniform expansion. The resulting closed-cell matrix offers steady thermal conductivity, high moisture resistance, and reliable compression resilience (above 80%). The flame-retardant formulation ensures it self-extinguishes, reducing smoke propagation in fire events.
| Technical Property | Value / Parameter |
|---|---|
| Material Base | Premium NBR/PVC blend |
| Wall Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm (Compatible with global copper and steel pipes) |
| Density Range | 40 - 55 kg/m³ |
| Service Temperature Limits | -40℃ to 105℃ |
Equipped with custom inner-coating spray technology, Kingflex insulation tubes feature a smooth bore that glides over piping. This reduces installation friction, minimizes condensation risk, prevents freezing, and resists mechanical wear over a 10 to 15-year operational life.
Industrial and commercial project procurement managers prioritize materials that offer traceability, regulatory compliance, and low life-cycle costs. In today’s market, key trends include:
LEED and Green Building Compliance: Project specifications increasingly demand insulation that is free from ozone-depleting substances, CFCs, and volatile organic compounds (VOCs).
System Security against CUI (Corrosion Under Insulation): Low water absorption prevents moisture accumulation against steel pipes, reducing the risk of corrosion under insulation.
Supply Chain Security: Distributors and contractors require factories that can maintain consistent production during raw material supply fluctuations, ensuring project timelines are met.
Kingflex products undergo continuous testing by global agencies. This validation ensures our insulation meets localized fire safety and environmental codes in North America, Europe, the Middle East, and Asia-Pacific regions.




From standard building services to extreme cryogenic systems, our elastomeric foam adapts to demanding thermal requirements.
Provides thermal insulation for chilled water lines, hot water pipes, and central air conditioning duct systems, preventing condensation and energy loss.
Engineered to handle extreme low temperatures in liquefied gas transfer lines, industrial chemical processing, and low-temperature cold storage systems.
The elastic structure absorbs vibration and dampens structural sound in plant rooms, commercial piping, and transport interior linings.




We maintain open communication channels with our global clients. Over the years, our professional engineering support and customer service have earned strong reviews from international contractors and procurement specialists.




Answers to common technical, logistics, and procurement questions regarding elastomeric rubber foam insulation.
We manage inventory and logistics to protect materials and ensure on-time delivery for global projects.












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