Kingflex
Explore our premium grade elastomeric insulation systems optimized for HVAC, refrigeration, chemical plants, and cryogenic installations.
The contemporary global market for industrial thermal insulation is undergoing a structural paradigm shift driven by stringent carbon-neutrality initiatives and energy safety guidelines. Industrial plants, cryogenic transportation fleets, and high-density commercial systems are looking for low thermal conductivity materials that can withstand complex climatic hazards.
With massive growth in HVAC/R, cleanroom constructions, and cryogenic storage facilities (such as LNG systems), standard insulating materials no longer suffice. Standard closed-cell elastomeric rubber foam insulation has taken the lead over traditional fiberglass or mineral wool. Its high vapor resistance and flexible structural profile prevent condensation, resist thermal drift, and minimize system energy dissipation.
Dacheng County, China, stands as the global capital of green-building materials. From here, Kingflex Insulation Co., Ltd. delivers high-volume production with extreme precision. Leveraging five modern fully automated assembly lines, our manufacturing framework outputs an annual production capacity exceeding 600,000 cubic meters.
This automated infrastructure allows us to maintain consistent material thickness, precise density distributions, and flawless closed-cell matrices. Through highly efficient logistics connections, we ship specialized containers directly to key industrial hubs worldwide, providing competitive pricing margins and reliable lead times for EPC contractors.
Established by the Jinwei/Kingway Group, which holds more than 40 years of manufacturing history since its founding in 1979, Kingflex is rooted in deep technical lineage. As the first thermal insulation manufacturer north of the Yangtze River, the group pioneered the commercialization of modern insulating foams and boards in China.
Today, our facility works as a designated production partner for the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, ensuring we remain at the forefront of China's national structural infrastructure development.
A closer look at the material science and structural properties of Kingflex Elastomeric Insulation products.
With a closed-cell rate exceeding 98%, our NBR/PVC matrix effectively stops moisture vapor penetration, ensuring long-term thermal conductivity remains stable.
Our material is self-extinguishing and limits smoke propagation, meeting BS 476 Class 0, CE, REACH, RoHS, UL94, and ASTM fire protection criteria.
With a compression resilience rate over 80%, our rubber foam reduces install times, adjusts smoothly to irregular pipes, and maintains constant thickness.
| Technical Characteristic | Kingflex Standard Metric Value | ASTM / BS Standard Reference |
|---|---|---|
| Material Composition | NBR/PVC Elastomeric Rubber Alloy (Halogen-Free Options Available) | ASTM C534 Compliant |
| Thickness Range | 6mm to 50mm (Sheets) / 9mm to 40mm (Tubes) | GB/T 17794 Standard |
| Core Product Density | 40 to 55 kg/m³ | ASTM D1622 |
| Effective Service Temperature Range | -40℃ to 105℃ (Cryogenic series down to -200℃) | EN 14706 / ASTM C411 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0℃ | ASTM C177 / ISO 8302 |
| Moisture Resistance Factor (μ) | ≥ 10,000 (Built-in moisture barrier) | EN 12086 / ASTM E96 |
Our dedicated R&D division has 8 professional insulation engineers working on chemical structures, physical resistance testing, and custom applications. We back our material developments with systematic quality assurance processes. Every roll and pipe section carrying the Kingflex name features complete batch code traceability, so engineers can verify material sources from raw formulation to dispatch.
Our manufacturing and product designs undergo testing by international standard bodies, ensuring compliance with construction and safety codes.
How our elastomeric products are integrated into major industrial, commercial, and transport installations.
Used on chilled water lines, distribution ducting, and ventilation units to stop heat gain, manage condensation, and lower noise levels.
Provides thermal insulation and corrosion protection for steam pipelines, chemical lines, and massive storage tanks operating in harsh outdoor conditions.
Our sound-absorbing panels and flexible rubber components deliver reliable sound damping in train carriages, vessel engine rooms, and airports.
Proof of our international reliability, transparent trade dealings, and long-term procurement partnerships.
Explore real-world deployments of Kingflex elastomeric insulation sheets, rolls, and pipes on structural pipeline networks.








A reference for design engineers. Download our complete PDF catalogue for full product dimensions, thickness options, and weight metrics.
Ideal for central HVAC systems, wall and roof structural insulation, basement acoustic barriers, rail transit carriages, cold chain logistics storage, and chemical process piping.
Ideal for central air conditioning chilled/hot lines, condensate piping, domestic building water distribution systems, industrial steam runs, and solar loop pipelines.
Take a look at our Dacheng production facility, showcasing raw material mixing, automated extrusion lines, and ready-to-ship inventory.












A reference index of the insulation products featured in our comprehensive technical catalog.
With distribution partners in 66+ countries, we ensure reliable delivery of bulk insulation orders to project sites globally.
Get quick answers to common questions about thermal calculations, installation techniques, and custom manufacturing processes.
Complete your insulation specifications with our aluminum-foil faced rolls, pre-slit tubes, and high-density elastomeric accessories.