Kingflex
Kingflex
Explore our primary product line of halogen-free sheet rolls, elastomeric pipes, and specialty thermal systems designed for stringent safety standards.
Understanding the shift towards non-toxic thermal management in modern construction and high-risk industries.
Traditional elastomeric foam containing chlorine or bromine releases highly corrosive, toxic hydrogen halide gases during a fire. Halogen-free insulation mitigates this risk entirely, generating minimal smoke and non-acidic byproducts, protecting occupants and facilitating safe egress.
In industrial systems, halogenated leachables in insulation can induce stress corrosion cracking (SCC) in stainless steel and copper piping. Our zero-halogen formulation acts as a non-corrosive shield, significantly reducing risks of Corrosion Under Insulation (CUI) in process lines.
Strict environmental and building standards such as RoHS, REACH, LEED, and BREEAM mandate the elimination of hazardous substances. Halogen-free insulation satisfies these ecological benchmarks, helping operators secure green building credentials worldwide.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and production departments are located in Dacheng, China—a well-known capital of green building materials. As an energy-saving and environmentally friendly enterprise, we concentrate heavily on the research, development, production, and sale of advanced elastomeric solutions.
We are established by the Jinwei Group (also known as the Kingway Group in various markets), which possesses more than 40 years of manufacturing history. Established in 1979, the group was the first manufacturer of thermal insulation materials north of the Yangtze River. Today, Kingflex leads the development of the global building materials industry by offering comprehensive consultancies, continuous R&D production, installation guidance, and post-sale services.
At present, Kingflex operates 5 large automatic assembly lines. Our high level of automation ensures consistency in cell size, density, and thickness—factors critical for stable long-term thermal conductivity. We are proud to be a designated production enterprise selected by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry of China.
Our commitment to quality extends from raw materials to final shipment. With eight dedicated R&D engineers, six international sales specialists, and 230 production staff, we manage our processes through rigorous testing. Every batch of elastomeric rubber foam insulation sheets and tubes is fully traceable, ensuring compliance with global certifications.
Our premium NBR/PVC and specialty halogen-free systems are built to meet rigorous engineering requirements.
A highly flexible elastomeric insulation designed for large surfaces, ducts, and large-diameter pipelines.
| Parameters | Standard Value | Performance Advantages |
|---|---|---|
| Material Base | NBR/PVC (Halogen-Free variants available) | Highly elastic closed-cell structure |
| Thickness Range | 6mm to 50mm | Supports varying insulation requirements |
| Density | 40 - 55 kg/m³ | Optimal weight-to-performance ratio |
| Service Temperature | -40℃ to 105℃ | Broad thermal stability range |
| Closed-Cell Rate | > 98% | Exceptional vapor and moisture barrier |
| Compression Resilience | > 80% | Maintains structural integrity over time |
| Applications | HVAC air ducts, building wall/roof insulation, sound absorption in mechanical rooms, vessel thermal preservation, railway carriages. | |
Pre-formed elastomeric tubes for quick, seamless installation on copper, steel, and plastic lines.
| Parameters | Standard Value | Performance Advantages |
|---|---|---|
| Material Base | NBR/PVC Elastomeric Foam | Flexible, non-abrasive, snug fit |
| Inside Diameter (ID) | 6mm to 114mm | Accommodates standard pipeline dimensions |
| Thickness Range | 9mm to 40mm | Customizable layers for energy efficiency |
| Moisture Resistance | High resistance factor (μ) | Greatly reduces risk of pipe condensation |
| Safety Feature | Flame retardant, self-extinguishing | Meets BS 476, Class 0 / Class 1 requirements |
| Applications | Chilled water lines, hot water plumbing, solar thermal systems, process piping, cold-chain pipelines, cryogenic insulation. | |
Tested and certified by international laboratories to ensure high safety standards and complete transparency.
Kingflex halogen-free thermal insulation systems comply with BS 476 Part 6 & 7, CE Markings, REACH, RoHS, UL94 flammability ratings, and ASTM standards, guaranteeing safety in public buildings, ships, and data centers.
Select the specific thermal and sound insulation model required for your engineering design.
Providing industrial buyers, EPC contractors, and distributors with optimized supply chain solutions.
We configure customized insulation profiles, varying wall thicknesses (6mm up to 50mm), double-sided adhesive facings, and specialty aluminum foil backings designed for mechanical wear resistance.
We regularly host global inspectors checking material composition, aging behavior, fire safety, and thermal consistency, ensuring compliance with international project parameters.
Our proximity to major Chinese shipping hubs allows us to export securely. Over 16 years, we have delivered projects to over 66 countries across North America, Europe, the Middle East, and Southeast Asia.
Our materials are deployed across skyscrapers, data centers, oil refineries, and municipal supply lines.
Visual evidence of our production quality, raw material mixing, foam extrusion, and structural testing.
Frequently asked questions concerning technical properties, applications, and purchase procedures.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its high flexibility and moisture barrier capability make it well-suited for high-density, complex routing environments.
Yes, our rubber foam insulation is fire retardant, which meets the safety standards of building and industrial projects. Our formulation supports self-extinguishing parameters to slow flame propagation during structural emergencies.
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 services to meet different project needs. Custom services include self-adhesive backings, aluminum cladding, custom coloring, and specialized thickness extrusion.
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 run is cataloged, linking raw materials, automated foam line settings, and warehouse QA audits to the barcode on the package.
We can produce from 6mm to 50mm thickness. This range permits single-layer application for standard HVAC systems or thick, multi-layered build-ups for cryogenic and heavy industrial plants.
It will be about 10 to 15 years, depending on environmental exposure, mechanical wear, and installation quality. Proper installation with protective cladding can extend this lifespan further.
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