Kingflex
Select commercial and industrial products engineered for absolute thermal performance and condensation protection.
Thermal insulating materials are defined as substances or combinations of substances that retard the flow of heat energy. In thermodynamics, these materials are characterized by having low thermal conductivity (often expressed as k-value or λ ≤ 0.040 W/(m·K) at room temperature). They perform this function through three fundamental mechanisms: minimizing gaseous convection, limiting radiative energy transfer, and disrupting solid-state conduction paths.
Within building science, structural engineering, and industrial process pipelines, proper insulation design is critical to mitigate condensation, prevent energy dissipation, and stabilize internal microclimates. Modern elastomeric insulation utilizes synthetic polymers such as Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) matrixes blown with inert gases, trapping micro-scale gas pockets in a highly stable closed-cell system.
Key Parameter Metrics: Closed-cell structures are crucial because they not only retard heat conduction but also serve as built-in vapor barriers, achieving a high resistance to moisture vapor transmission (μ ≥ 10,000).
Purchasing agents, MEP contractors, and industrial developers face increasing pressures regarding logistics, cost management, and regulatory compliance. China's raw material cluster offers structural advantages.
Located in Dacheng, China—the world-renowned capital of green-building materials—our factories benefit from immediate integration with petrochemical monomer refineries, optimizing NBR and PVC supply costs.
By operating 5 automated high-speed extrusion and vulcanization lines, we scale up production to 600,000 cubic meters annually, reducing unit costs and ensuring reliable delivery schedules.
Equipped with thermal conductivity meters, oxygen index analyzers, and smoke density test cabinets to perform batch-by-batch physical parameter verification prior to export.
Established by the Jinwei Group, which has more than 40 years of history since its foundation in 1979 as the pioneer manufacturer of thermal insulation materials north of the Yangtze River. Today, Kingflex is a comprehensive manufacturing and trading combo focusing on the R&D, fabrication, and domestic/international sales of high-end energy-saving insulation systems.
Our operation takes energy conservation and industrial carbon emission reduction as its core mission. We provide clients with custom-engineered insulation consulting, laboratory testing, physical property modification, installation guides, and full-spectrum after-sale services to lead the development of global clean building and green HVAC infrastructure.
Modern engineering projects demand insulation systems that can withstand harsh operating environments. Kingflex designs customized solutions to meet these challenges.
Eliminate condensation issues on cold water supply pipelines and chilled water air conditioning loops. Minimizes thermal gains/losses in massive commercial complexes, air ducts, and plant rooms.
Specifically engineered elastomeric rubber structures designed to perform under extreme sub-zero conditions (down to -40°C), safeguarding industrial gas lines and LNG terminals.
Combined NBR/PVC closed-cell matrixes offer dual-action insulation by trapping heat and absorbing sound waves, providing noise control for mechanical rooms, duct linings, and generator bays.
Accurate physical parameters of our premier elastomeric closed-cell rubber foam product ranges.
| Material Category | Thickness Scope | Inner Diameter (ID) | Material Density | Service Temp. Range | Closed Cell Rate |
|---|---|---|---|---|---|
| Black Rubber Foam Sheet Roll | 6mm - 50mm | N/A (Roll Format) | 40 - 55 kg/m³ | -40℃ to 105℃ | ≥ 98% |
| Black Rubber Foam Insulation Pipe | 9mm - 40mm | 6mm - 114mm | 40 - 55 kg/m³ | -40℃ to 105℃ | ≥ 98% |
| NBR/PVC Composite Sheet Roll | 6mm - 50mm | N/A | 42 - 50 kg/m³ | -40℃ to 105℃ | ≥ 98% |
| Cryogenic Insulation Rubber Foam | 13mm - 32mm | 6mm - 89mm | 50 - 65 kg/m³ | -200℃ to 125℃ | ≥ 99% |
Engineered for massive surface areas such as commercial air ducts, large tanks, heavy industrial valves, and machinery shells. Its high flexibility enables rapid wrapping and seamless structural bonding.
Designed for easy slide-on or slit-and-glue application onto copper and steel pipelines, protecting system hydraulics from thermal transfer and environmental freezing.
Kingflex maintains absolute transparency. Our R&D testing ensures every production run meets international safety standards.
Our products are engineered to comply with strict international regulatory frameworks, ensuring safety and performance across global markets.
Our commitment to building trust with buyers is demonstrated through transparent client interactions and proven project execution.
Feedback: Client from Latin America confirming product quality.
Feedback: Feedback regarding the safety of packaging and transit.
Feedback: Communication concerning batch traceability and reports.
Feedback: Confirmation of dimensions and densities for custom projects.
From commercial high-rises to petrochemical complexes and municipal HVAC installations, Kingflex products have been specified for diverse environments globally.
Our solutions prevent heat transfer, control acoustic pollution, and stop condensation buildup on steel and copper systems. Partner with us for reliable quality and supply chain efficiency.
We work directly with engineering, procurement, and construction (EPC) companies to supply key projects on tight timelines. Our materials pass field inspection protocols and deliver thermal performance from day one.
Our factory provides installation guides and design documentation, helping projects meet global building standards.
Find clear answers to your technical, chemical, and regulatory questions about Kingflex insulation products.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell elastomeric structure prevents heat transfer and condensation buildup, protecting the pipeline substrate from rust and degradation.
Yes, our rubber foam insulation products are flame retardant. They are self-extinguishing when removed from fire, preventing flame propagation and minimizing toxic fumes. Our materials meet major international safety standards, including BS 476 Class-0/1, CE, and UL94.
Rubber Foam is flexible, has a closed-cell structure, and has built-in moisture resistance, making it ideal for HVAC, chilled water piping, and building condensation control.
Rock Wool is highly fireproof and heat-resistant, making it suitable for high-temperature industrial steam lines and furnace walls.
Yes, we support comprehensive OEM/ODM services. We can customize density, wall thickness, inner diameter, color, and adhesive backing to meet specific application requirements.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM, and other major international certifications, ensuring reliable quality and compliance with global standards.
Yes, every production batch has a unique code. This allows us to trace raw materials, production metrics, and laboratory test results to ensure consistent quality.
We produce standard sheet rolls in thicknesses ranging from 6mm to 50mm. Custom thicknesses can be engineered for specific insulation requirements.
When installed correctly in recommended environments, our insulation has a service life of 10 to 15 years, offering stable thermal performance throughout its lifespan.
Select from our catalog of elastomeric sheets, tubes, and specialty rock wool lines for commercial and industrial applications.
