Kingflex
Kingflex
In modern building infrastructure, the demand for fire-rated thermal insulation has transformed from a structural compliance measure to a core strategic component. Across regions like North America, the European Union, the Middle East, and Asia-Pacific, rapid urbanization, stricter national fire codes, and the global push toward Net-Zero carbon emissions are forcing procurement managers and EPC (Engineering, Procurement, and Construction) contractors to re-evaluate their thermal insulation supply chains.
SEO Insight & Intent Alignment: Global buyers searching for "China Fire Rated Insulation Pricelist & Quotes" are not merely seeking base unit prices. They are resolving a multi-tiered constraint optimization problem: balancing high-level performance specifications (BS 476, Class 0, UL 94, ASTM E84 compliance) with scalable supply security, logistics feasibility, and long-term chemical durability under harsh mechanical loads.
Kingflex Insulation Co., Ltd. addresses this paradigm. Operating at the intersection of material science and global logistics, Kingflex supplies premium elastomeric closed-cell insulation designed to withstand temperature spikes, moisture ingress, and rapid flame spread.
Thermal insulation systems are the circulatory system protection of industrial and commercial infrastructures. Our product lines serve as holistic solutions across critical sectors:
Preventing condensation in high-humidity ductwork, reducing cooling/heating load transmission loss, and mitigating structural sound vibrations across commercial and residential structures.
Designed for ultra-low temperature liquid natural gas (LNG) systems, cold-chain processing facilities, and high-tech process pipelines requiring low thermal conductivity at sub-zero temperatures.
Specially engineered formulations for gym shockproof pads, architectural acoustic panels, and mechanical rooms to absorb impact forces and suppress high-frequency structural noise.
The performance of Kingflex Nitrile Rubber (NBR/PVC) closed-cell foam is tested and validated under strict laboratory protocols. Below are the core technical baselines engineered to meet international safety and insulation quality rules.
| Performance Criterion | Test Standard | Kingflex Standard Spec Sheet | Operational Value Advantage |
|---|---|---|---|
| Thermal Conductivity (λ) | ASTM C518 / EN 12667 | ≤ 0.034 W/(m·K) at 0°C | Minimizes energy loss, reducing operating expenses. |
| Moisture Resistance Factor (μ) | BS EN 12086 | ≥ 10,000 (Closed-cell rate >98%) | Eliminates risk of water vapor ingress, preventing corrosion under insulation (CUI). |
| Fire Performance | BS 476 Part 6 & 7 / UL 94 | Class 0 / Class 1 / V-0 | Self-extinguishing; zero flaming droplets; low toxic smoke density. |
| Service Temp Range | ASTM C411 | -40°C to +105°C (Up to -200°C for Cryogenic lines) | Stable performance across high-thermal fluctuation zones. |
| Compression Resilience | ASTM D1056 | ≥ 80% recovery rate | Retains structural thickness and mechanical properties under load. |
Established by the Jinwei Group, which holds a historical operational record spanning over 40 years since its founding in 1979, Kingflex is a premier industrial player in thermal insulation. Located in Dacheng, China—widely recognized as the capital of energy-efficient green building materials—our company operates on a global scale.
With 5 large automatic continuous foaming lines and an integrated supply chain, we are recognized as a designated production enterprise by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry in China. This structural scale ensures short lead times, price stability, and high quality control for large infrastructure tenders.
Kingflex maintains 8 dedicated R&D engineers, 6 international customer support managers, and 230 workers. Every batch of elastomeric rubber foam sheet rolls and pipes undergoes rigorous quality checks, ensuring full traceabilty. All materials conform strictly to CE, REACH, RoHS, UL94, and ASTM certification systems.
Kingflex combines automated production with rigorous quality control. Our legacy spans over four decades of thermal insulation production, making us a trusted partner for global sourcing managers.
Kingflex offers structured systems for elastomeric sheets and tubular insulation. The dimensions below represent our standard stock configurations. Custom thickness and inner diameter profiles can be manufactured via OEM/ODM systems.
| Material | NBR / PVC Blend |
| Thickness | 6mm to 50mm |
| Density | 40 - 55 kg/m³ |
| Thermal Conductivity | λ ≤ 0.034 W/m·K (at 0°C) |
| Temperature Range | -40°C to +105°C |
Key Advantages: High closed-cell density (>98%) prevents atmospheric vapor absorption, ensuring stable long-term thermal resistance. The flexible nature of this sheet roll allows rapid installation on wide-diameter ductwork and large machinery surfaces.
| Material | NBR / PVC Blend |
| Thickness | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Density | 40 - 55 kg/m³ |
| Temperature Range | -40°C to +105°C |
Key Advantages: Formulated for rapid slip-on installations over HVAC chilled water lines, geothermal circulation circuits, and heavy-duty steam transport pipes. Extremely effective in mitigating localized pipe freeze risk and atmospheric condensation.
Developing an efficient procurement strategy for industrial thermal insulation requires understanding the key cost drivers. Kingflex offers direct factory-level pricelists and custom quotes based on volume commitments, packaging profiles, and compliance requirements.
Our international trading division communicates with EPC contractors, HVAC wholesalers, and engineering clients worldwide, ensuring reliable order fulfillment and technical support.
The insulation industry is shifting toward materials with lower environmental impact and higher thermal performance. Kingflex's engineering team is focused on developing next-generation solutions:
Phasing out remaining chemical blowing agents in favor of water-based or inert gas technologies, ensuring zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) metrics.
Developing bio-sourced rubbers derived from renewable agricultural feedstocks, reducing reliance on fossil resources while maintaining flame retardancy.
Integrating silica aerogels into closed-cell elastomeric structures, pushing thermal conductivity limits below 0.030 W/m·K for cryogenic applications.
Kingflex insulation materials are used globally in high-traffic airports, commercial high-rises, industrial cleanrooms, and chemical processing facilities.
Elastomeric rubber foam is a synthetic closed-cell elastomer. It is primarily used for insulating HVAC ductwork, commercial air conditioning pipes, building envelopes, industrial process piping, and cryogenic systems. Its closed-cell structure prevents moisture condensation and mitigates corrosion under insulation (CUI) on cold steel pipes.
Yes. Our insulation materials are engineered with built-in fire-retardant chemistry. The products meet BS 476 (Part 6 & Part 7) Class 0 and Class 1 standards, and conform to the UL 94 V-0 flame-retardant rating. They are self-extinguishing when exposed to direct flames and produce low smoke density.
Rubber foam is flexible, possesses a closed-cell structure, and has high moisture resistance (water vapor permeability factor μ ≥ 10,000), making it ideal for refrigeration, HVAC, and condensation control. Rock wool is a high-temperature resistant mineral fiber (often up to 1000°C) with an open structure, making it highly effective for fire containment and high-temperature steam lines, but it requires a separate vapor barrier in cold systems.
Yes. We support custom OEM/ODM services to meet specific project needs. We can manufacture customized thicknesses (from 6mm up to 50mm), custom inner diameters (from 6mm to 114mm for piping), and apply specialized protective jackets such as multi-layer aluminum foils for outdoor applications.
Our products comply with major global testing standards. Kingflex products carry certifications including BS 476, CE, REACH, RoHS, UL 94 V-0, and ASTM. This compliance makes them eligible for major commercial tenders in Europe, North America, the Middle East, and Asia-Pacific.
Yes. We implement a rigorous quality management system (ISO 9001). Every production run of elastomeric sheets, rolls, and tubes is stamped with unique batch numbers. This enables tracing from raw material inspection (NBR/PVC base polymers, flame retardants) through foaming, cutting, packaging, and shipping stages.
Kingflex manufactures standard elastomeric rubber foam sheets and rolls in thicknesses ranging from 6mm to 50mm. Thicker sheets are typical for heavy industrial chilling units and cryogenic lines, while thinner options (6mm to 13mm) are commonly used for small HVAC ducts and pipes.
Under standard indoor operating conditions and proper installation procedures, Kingflex products have a service life of approximately 10 to 15 years. For outdoor environments, we recommend applying a UV-resistant coating or using aluminum foil-clad (Alu-Clad) protective jackets to prevent atmospheric weathering and extend structural service life.
