Kingflex
Explore our elite collection of engineered elastomeric products, optimized for commercial HVAC, cryogenic installations, and acoustic suppression systems.
Understanding how NBR/PVC matrix structure delivers unprecedented thermal and moisture barrier efficiency.
By leveraging an engineered NBR (Nitrile Butadiene Rubber) and PVC blend, our manufacturing system cures foam with a closed-cell percentage exceeding 98%. This dense cell matrix traps microscopic pockets of dry air, suppressing convective thermal currents and minimizing structural heat loss.
Unlike open-cell materials or fibrous blankets that require secondary protective jackets, Kingflex elastomeric foam possesses an inherently high resistance to water vapor transmission. With a permeability index (μ) ≥ 10,000, it prevents moisture absorption that leads to mold growth and pipe corrosion.
Safety compliance is critical in public infrastructure projects. Kingflex insulation matches global building safety criteria, achieving BS 476 Class 0 and flame retardant UL94 classifications. This results in self-extinguishing properties, extremely low flame spread index, and minimal smoke toxicity.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and state-of-the-art production department are located in Dacheng, China—widely recognized as the capital of green-building materials. As an energy-saving, environmentally friendly enterprise, we centralize R&D, advanced manufacturing, global sales, and ongoing technical support.
Operating with energy conservation and carbon footprint reduction as core concepts, Kingflex provides holistic insulation system solutions. From initial project design consultation, custom material development, high-throughput manufacturing, to field installation guidance and post-sale performance audits, we lead the development of the global building materials industry.
Established by the Jinwei Group, which boasts over 40 years of industrial heritage, Kingflex benefits from a deep foundation of thermal research. Jinwei Group, established in 1979, was the pioneer manufacturer of thermal insulation materials north of the Yangtze River. Today, we sustain that legacy by incorporating advanced automation and high-precision testing into every production line.
At Kingflex, our team members are experts in polymers, thermodynamics, and mechanical design. We foster a tight-knit, talented workforce dedicated to providing first-class service to clients across sixty-six nations. Our current human capital assets include:
Our commitment to continuous improvement means we invest heavily in laboratory equipment, fire chamber testing, and mechanical stress test rigs. This R&D system ensures that every batch of NBR/PVC foam delivered meets strict field application specifications.
Massive output, automated accuracy, and structural supply security for large-scale engineering pipelines.
At present, Kingflex operates 5 large-scale fully automatic continuous extrusion assembly lines. With an annual production capacity exceeding 600,000 cubic meters, we have achieved status as a designated production enterprise authorized by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry in China.
Our materials are engineered for construction, petroleum refining, petrochemical processing, defense infrastructure, and aerospace applications. In the past 16 years, Kingflex thermal insulation products have been exported to more than sixty-six countries, ensuring building stability, process pipe safety, and energy conservation worldwide.
Detailed mechanical properties, dimensions, and materials data for our NBR/PVC elastomeric range.
| Property / Parameter | NBR/PVC Elastomeric Sheet Roll | NBR/PVC Elastomeric Pipe/Tube |
|---|---|---|
| Base Material Matrix | Nitrile Butadiene Rubber / Polyvinyl Chloride Blend | Nitrile Butadiene Rubber / Polyvinyl Chloride Blend |
| Available Thicknesses | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm | 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm |
| Inner Diameter (ID) Range | N/A (Flat sheet / custom roll) | 6mm up to 114mm (Standard piping match) |
| Material Density | 40 - 55 kg/m³ (Optimized for cell structural integrity) | 40 - 55 kg/m³ |
| Service Temperature Limit | -40°C to +105°C (Extreme low-temp configuration available) | -40°C to +105°C |
| Thermal Conductivity (λ) | ≤ 0.034 W/m·K at 0°C (Highly stable thermal performance) | ≤ 0.034 W/m·K at 0°C |
| Moisture Resistance Factor | μ ≥ 10,000 (Excellent resistance to vapor permeation) | μ ≥ 10,000 |
| Fire Safety Compliance | BS 476 Part 7 Class 1 & Part 6 Class 0, UL94 V-0 | BS 476 Class 0, UL94 V-0, ASTM E84 compliant |
Why global procurement agencies trust Kingflex for reliable raw material sourcing, logistics, and cost control.
Located in the Dacheng green-building materials cluster, we enjoy integrated access to high-grade polymers, blowing agents, and chemical additives. This minimizes raw material transport costs and secures our raw material supply chains during high-demand cycles.
We supply more than off-the-shelf items. We configure custom NBR/PVC ratios, color codings, self-adhesive backings, and reinforced foil jacketing. Our engineers adjust insulation density and formulation to match specific application specs.
With direct routes to major deepwater ports in Tianjin and Qingdao, we streamline maritime freight logistics. Our export department handles custom declarations, export clearances, and combined container shipments to minimize transit delays.
In high-stakes industrial procurement, certifications are the foundation of trust. Kingflex products undergo verification testing by third-party laboratories. Our elastomeric solutions comply with the following global standards:
Every shipment is traceably tracked. Through our integrated batch numbers, we provide material traceability and transparent testing logs to help clients navigate strict local inspection protocols.
From deep cryogenic processes to high-humidity commercial HVAC systems, Kingflex provides application-specific insulation solutions.
Condensation control is the primary challenge in chilled water piping and commercial air distribution ducts. Kingflex sheets protect duct systems from moisture accumulation, preventing mold development and structural ceiling water damage.
In industrial environments, process temperature fluctuations demand high thermal stability. Our elastomeric insulation tubes insulate process pipes, preventing surface corrosion, reducing ambient heat exchange, and protecting operators from burns.
For liquefied natural gas (LNG) distribution and ultra-low temperature scientific processes, Kingflex supplies specialized multi-layered cryogenic elastomeric systems. These systems maintain material flexibility at temperatures down to -196°C, preventing stress cracking.
Acoustic comfort is critical in hotels and medical centers. Kingflex open-cell and high-density sheets absorb structure-borne and airborne noises generated by mechanical blowers, chillers, and wastewater transport lines.
Transparent communications and technical problem-solving with our global engineering partners.
Technical answers regarding product capabilities, material specifications, and logistics procedures.
Heavy-duty elastomeric sheets and specialized insulation rolls for contractors, distributors, and engineering firms.







