Explore our high-performance thermal and acoustic rubber foam products engineered for superior fire safety and minimal heat transfer.
Kingflex Insulation Co., Ltd. is a globally distinguished professional manufacturing and trading combo specializing in premium elastomeric thermal insulation systems. Positioned in Dacheng, China—the undisputed capital of green-building materials—we operate as a clean-energy and environmentally conscious enterprise that bridges raw R&D with global distribution.
Our foundation is built upon the robust legacy of the Jinwei Group, established in 1979. As the pioneer manufacturer of thermal insulation materials north of the Yangtze River, Jinwei has accumulated over 40 years of engineering and manufacturing expertise, which flows directly into our modern Class 0 product lines.
Our operational capability is driven by an elite collective of professionals. The Kingflex R&D department features 8 professional materials engineers, backed by a support staff of 6 professional international sales coordinators and 230 highly trained workers within our production facility. We ensure comprehensive lifecycle service, extending from raw thermodynamic modeling to post-sale structural validation.
True Class 0 performance requires a carefully engineered matrix that balances flame suppression, thermal resistance, and moisture migration prevention.
With a closed-cell rate exceeding 98%, our NBR/PVC blend prevents the convective movement of gases. The ultra-fine cell size effectively seals air pockets, achieving a stable, low thermal conductivity ($\lambda \le 0.034$ W/m·K at 0°C) and keeping moisture absorption to a minimum.
Our Class 0 rating complies fully with BS 476 Part 6 & 7. It ensures a propagation index ($I$) of less than 12, a sub-index ($i_1$) of less than 6, and a Class 1 surface spread of flame. This self-extinguishing behavior dramatically delays fire spread inside buildings.
Moisture ingress is the leading cause of insulation breakdown. Kingflex products feature an integrated vapor barrier design with a high moisture resistance factor ($\mu \ge 10,000$). This ensures long-term performance and prevents under-insulation corrosion (CUI) in chilled water lines.
Kingflex runs 5 large automatic assembly lines, generating an annual capacity of over 600,000 cubic meters. This continuous extrusion and curing process delivers exceptional dimensional stability and uniform cell distribution across our entire product line.
As a key supplier recognized by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, our plant operates under strict industrial guidelines. We offer full batch traceability, helping international buyers trace products back to their precise raw material metrics and production timestamps.
From civil construction to complex petrochemical piping, Kingflex provides robust insulation systems built to withstand demanding environments.
Condensation on ductwork and chiller pipes can cause water damage and mold growth. Our Class 0 rubber foam sheet rolls and pipes prevent condensation and minimize energy loss on cold water systems, hot water pipelines, and air handling systems.
Specially formulated to handle extreme temperature fluctuations, our cryogenic insulation systems remain flexible at temperatures as low as -200°C. They prevent thermal shock and structural stress in liquefied gas facilities and petrochemical pipelines.
Our open-cell structures, including our 10mm thick sound-absorbing sheets, dampen structure-borne noise and absorb sound waves. Ideal for machine rooms, industrial fan casings, and internal duct linings, they help create quieter spaces.
Our products undergo rigorous testing by third-party testing bodies to ensure compliance with regional building and safety codes.
Transparent communications and rigorous quality checkpoints show why contractors in over 66 countries trust Kingflex.
We work closely with project teams from the specification phase through final installation. Our team of 8 R&D engineers assists with heat-loss calculations, thickness determinations, and condensation analysis.
Our international trade team coordinates shipping, customs clearance, and compliance paperwork, helping ensure smooth deliveries to sites in Europe, the Americas, and the Middle East.
We maintain clear, direct communication channels with our partners, providing regular production updates and shipping coordination to keep projects on track.
Kingflex Class 0 elastomeric systems are widely used in commercial skyscrapers, data centers, airports, and chemical plants. Our products deliver stable insulation and reliable condensation control, helping extend the operating life of mechanical piping systems.
| Product Parameter | Standard Values |
|---|---|
| Raw Material Blend | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Thickness Range | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm |
| Available ID (Pipes) | 6mm up to 114mm |
| Density Matrix | 40 - 55 kg/m³ |
| Temperature Range | -40℃ to +105℃ (Special Cryogenic grades down to -200℃) |
| Thermal Conductivity | $\le 0.034$ W/(m·K) at 0°C |
| Water Vapor Barrier | $\mu \ge 10,000$ (Self-Vapor Seal Structure) |
We maintain buffer inventory across standard sizes to ensure short lead times for international orders.
Technical answers to common questions about Class 0 insulation selection, installation, and compliance.
Select from our specialized products, including high-density tubes, cryogenic rolls, and sound-absorbing panels.
Access engineering documents, installation guides, and testing parameters for your next project.
Download complete PDFs detailing thermal conductivity curves, moisture barrier factors ($\mu$), and smoke toxicity levels across our product lines.
Download TDS LibraryGet certified copies of our BS 476 Class 0, UL94, ASTM E84, and CE ratings to support your project submittals.
Request CertificatesRequest customized calculations, including heat loss analyses, condensation point curves, and installation guidance from our technical team.
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