Kingflex
Explore our premium grade closed-cell elastomeric tubes, cryogenic systems, and custom protective insulation sheets.
Founded under the umbrella of the historic Jinwei Group (established in 1979 as the premier manufacturer of thermal insulation materials north of the Yangtze River), Kingflex Insulation Co., Ltd. stands as a professional manufacturing and trading titan. Our production hub is situated within Dacheng, China—renowned globally as the capital of green-building materials.
Operating with the core philosophy of energy saving and carbon footprint reduction, Kingflex integrates state-of-the-art research and development, smart production pipelines, and specialized installation guidance. We support modern structural and industrial setups with high-integrity elastomeric solutions, setting the benchmark for the global building materials landscape.
Empowering global infrastructure through modern mechanical thermal conservation technologies.
Buildings contribute to nearly 40% of global carbon emissions. Mechanical insulation serves as the first line of defense, slashing energy demands in active HVAC systems, steam lines, and refrigeration layouts to satisfy rigorous Net-Zero criteria.
Global environmental mandates restrict traditional flame retardants that release halogenated toxins during thermal events. Next-generation NBR/PVC matrices transition toward low-smoke, halogen-free, and self-extinguishing formulas.
With clean energy LNG structures, biotech storage facilities, and aerospace sectors growing exponentially, elastomeric materials are engineered for cryogenic conditions, maintaining elasticity at ultra-low ranges.
Engineered measurements, material properties, and thermal boundaries of Kingflex structural insulation ranges.
| Parameters | Value / Specifications |
|---|---|
| Material Composition | Premium Nitrile-Butadiene Rubber & Polyvinyl Chloride (NBR/PVC) Blend |
| Available Thicknesses | 6mm to 50mm Range |
| Bulk Density | 40 kg/m³ to 55 kg/m³ |
| Service Temperature Limits | -40℃ to 105℃ Range |
| Closed Cell Rate | >98% Closed Cell Matrix |
| Compression Resilience | >80% Structural Recovery |
| Flame Retardant Properties | Class 0 / Class 1 (BS 476 standard compatible, Self-Extinguishing) |
Perfectly suited for large ductwork, structural roofing systems, heavy industrial tanks, and large-diameter process systems where sheet layouts prevent ambient thermal gains.
| Parameters | Value / Specifications |
|---|---|
| Material Base | Advanced Elastomeric NBR/PVC Polymer Blend |
| Available Wall Thickness | 9mm to 40mm Wall Configurations |
| Internal Diameter (ID) Range | 6mm to 114mm Pipe Configurations |
| Bulk Density | 40 kg/m³ to 55 kg/m³ |
| Temperature Operating Range | -40℃ to 105℃ Limit |
| Condensation Control Factor | High Resistance to Water Vapor Ingress (μ > 7,000) |
| Physical Features | Extruded Tube / Custom Slit Layout options available |
Specially manufactured utilizing high-precision extrusion tooling to maintain equal wall thickness, preventing condensation and heat transfer in refrigeration lines and steam systems.
How Kingflex coordinates international logistical demands, material compliance certifications, and reliable local support.
Modern global logistics require strict component accountability. Kingflex operates a fully traced logistics process, ensuring each batch of elastomeric foam has complete records from raw monomers to the final extrusion stage. We operate 5 automated lines yielding a total capacity of 600,000+ cubic meters annually, making us a key supplier for national energy and petrochemical departments.
For international buyers, this ensures steady material supply, compliance with lead times, and comprehensive certification documentation (including BS 476, CE, REACH, RoHS, UL94, and ASTM) to streamline local custom clearance and building regulatory processes.
Continuous testing, compound analysis, and international validations ensure reliable long-term insulation performance.
Custom configurations matching specialized engineering specifications.
Condensation control in chilled water systems, preventing building moisture issues, wall mold, and mechanical rust while improving energy efficiency in return air ducts.
For ultra-low system layouts handling LNG, liquid oxygen, and biochemicals. Designed to maintain flexibility at cold extremes, preventing thermal cracking.
Open-cell formulations target mechanical noise control, absorbing acoustic waves in industrial plants, mechanical rooms, hotels, and healthcare ventilation shafts.
Selected project photos displaying successful installations and application scenarios.
At Kingflex, our technical roadmap focuses on the boundaries of material science. Our 8-engineer strong research group is currently developing next-generation Aerogel-Rubber Hybrid Composites.
By blending the extreme thermal resistance of silica aerogels with the flexibility of NBR/PVC elastomer networks, the resulting insulation achieves a thermal conductivity below 0.030 W/(m·k) at 0℃, while reducing the required installation thickness by half. This breakthrough optimizes space in tight shipboard, aerospace, and high-density datacenter environments.
In-depth insights into mechanical insulation selection, application, and compliance.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation and sound insulation. Its closed-cell structure prevents condensation, making it ideal for refrigeration applications.
Yes, our rubber foam insulation are fire retardant, which meets the safety standards of building and industrial projects. Our materials comply with BS 476, UL94, and other international safety criteria.
Rubber foam is flexible, closed-cell and moisture-proof, suitable for HVAC and building insulation; rock wool is high-temperature resistant and fireproof, suitable for industrial high-temperature pipeline insulation.
Yes, we support OEM service to meet different project needs. Custom options include specific density, interior tube diameters, customized sheet lengths, and pre-slit configurations.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM and other international certifications, ensuring product quality and compliance with global standards.
Yes, Kingflex products have traceability. Every production batch is coded with detailed production run parameters, ensuring full transparency in quality control.
We can produce from 6mm to 50mm thickness sheet configurations to meet a wide variety of commercial and industrial thermal resistance requirements.
When installed and maintained properly, our insulation products have a service life of approximately 10 to 15 years in typical commercial climates.
Review our specialized roll sheets, elastomeric tube configurations, and robust high-temp rock wool solutions.
True communication records showcasing the real-world impact and reliability of our global delivery services.
Our customers consistently rate Kingflex highly for response times, product quality, and packaging integrity. We serve as a trusted direct partner for global insulation wholesale and distribution.