Kingflex
Explore our premium range of closed-cell NBR thermal insulation tubes, sheet rolls, and specialty cryogenic materials engineered for extreme efficiency.
Kingflex Insulation Co., Ltd. is a world-class professional manufacturing and trading combo specializing in high-performance thermal insulation products. Nestled in Dacheng, China—historically celebrated as the capital of green building materials—our facilities combine state-of-the-art research laboratories with extensive production yards to deliver state-of-the-art energy-saving insulation systems.
Guided by our core operative concept of “energy saving, consumption reduction, and carbon mitigation”, we deliver robust insulation solutions through comprehensive consultation, advanced engineering, vertical manufacturing capacity, strict installation guidance, and unmatched post-sale support. Through steady international development, Kingflex continues to pave the way forward for the global building envelope and mechanical piping insulation industries.
Kingflex was established by the prestigious Jinwei Group, bringing with it more than 40 years of profound engineering history. Founded originally in 1979, the group pioneered industrial thermal insulation materials as the very first specialized manufacturer north of the Yangtze River.
To sustain technical leadership in a rapidly shifting structural landscape, our R&D Department employs eight professional engineers dedicated exclusively to polymer optimization and fire-safety chemistry. Supported by twenty-three international sales experts and over 230 precision operations personnel, our team guarantees that every single batch of NBR/PVC elastomer conforms to critical thermodynamic expectations.
Our dedicated laboratories focus on upgrading density indexes, structural elasticity, and fireproof resistance parameters.
Understanding the critical physical chemistry of Nitrile-PVC rubber foams for optimal structural performance under varying ambient pressures.
| Performance Indicator | Kingflex Standard Parameters | Testing Methods & Compliance References |
|---|---|---|
| Base Material Structure | NBR/PVC Elastomeric Blend (98% Closed-Cell Rate) | ASTM D1667 / ISO 1923 |
| Nominal Density Range | 40 - 55 kg/m³ | ASTM D1622 / ISO 845 |
| Thermal Conductivity (λ) | ≤ 0.034 W/m·K at 0°C | ≤ 0.036 W/m·K at 20°C | ASTM C518 / ISO 8301 |
| Moisture Permeability Factor | Water Vapor Resistance Factor μ ≥ 10,000 | ASTM E96 / BS EN 12086 |
| Service Temperature Limit | -40°C to +105°C (For Standard Cryogenic & HVAC setups) | ASTM C411 / ISO 13787 |
| Reaction to Fire / Flammability | Class 0 (BS 476 Part 6/7) | V-0 Rating (UL94) | Class A (ASTM E84) | BS 476, UL 94, ASTM E84, EN 13501-1 |
| Compression Resilience | ≥ 80% recovery under standard deflection stress | ASTM D1056 |
| Environmental Health Standards | Traceability Guaranteed, REACH Compliant, Low-VOC Formulation | RoHS / EPA VOC emissions limits |
Our manufacturing complex is strategically based in Dacheng, China—the undisputed heartland of national green-building materials research. This highly centralized geographical location offers unparalleled logistics optimization, raw material sourcing, and scale efficiencies that translation directly into competitive pricing for global projects.
By relying on five fully automated, high-output production lines, Kingflex reliably satisfies the strict project volumes dictated by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry. Operating next to major domestic industrial raw material pipelines, we maintain complete price control and buffer structures against regional material fluctuations, providing our international distribution networks with predictable pricing forecasts and short lead times.
Our NBR insulation holds certifications required for heavy-duty commercial projects across North America, Europe, the Middle East, and Asia Pacific.
Fully compliant with BS 476 Parts 6 & 7 Class 0, UL94 Class V-0, and ASTM E84. Our NBR foam relies on built-in flame retardants that immediately carbonize upon direct heat contact to suppress fire spread and prevent flame dripping.
With an exceptional μ index exceeding 10,000, our closed-cell matrix prevents moisture ingress, protecting refrigerant pipes from condensation and subsequent corrosion under insulation (CUI).
Free from ozone-depleting substances, CFCs, HFCs, and formaldehyde. Certified under REACH, RoHS, and CE guidelines to ensure compliance with global indoor air quality standards.
From deep architectural networks to high-stress petrochemical processing plants, our insulation systems deliver robust thermal defense.
High-efficiency thermal barrier for chilled water and condensate pipelines. By blocking heat transfer, it eliminates moisture accumulation and mold growth in large HVAC plenums.
Protective acoustic and thermal barriers for internal walls, subfloor spaces, and roofing assemblies. Delivers excellent sound absorption and reduces structural transmission noise.
Provides critical temperature management and sound damping for chemical pipes, steam ducts, and storage vessels operating under fluctuating ambient conditions.
Thermal stability solutions for large food production facilities, distribution hubs, and cryogenic cargo holds, preventing frost and energy loss.
Specialized acoustic isolation and thermal protection for passenger cars, undercarriage piping, and electrical lines requiring high vibration resistance.
Formulated for outdoor resistance against UV degradation and atmospheric weathering, preserving piping integrity up to 105°C continuous operation.
Explore some of the high-profile global installations utilizing Kingflex NBR/PVC elastomeric thermal systems.
A closer look inside the automated production lines and logistics yards of Kingflex.
Transparency is key to our customer support. Below are verified transaction communications and inquiries from procurement partners worldwide.
We maintain clear record logs and support documentation to ensure complete transparency throughout your project cycle.
Comprehensive technical guidance concerning Kingflex elastomeric closed-cell insulation applications, logistics, and material performance properties.
Review the exact structural dimension configurations and advantages of our main product types.
Material: NBR/PVC Blend
Thickness: 6mm - 50mm
Density: 40 - 55 kg/m³
Service Temperature: -40℃ to 105℃
Primary Advantages:
1. Over 98% closed-cell rate for superior thermal barrier performance.
2. Built-in moisture protection ensures stable thermal conductivity.
3. Compression resilience exceeding 80% for long-term durability.
4. Self-extinguishing material properties for enhanced fire safety.
Material: NBR/PVC Blend
Thickness: 9mm - 40mm
Inner Diameter: 6mm - 114mm
Density: 40 - 55 kg/m³
Primary Advantages:
1. Extruded with a uniform, smooth surface skin.
2. Fits standard pipe dimensions, helping to prevent freezing and thermal cracking.
3. Highly flexible formulation for quick installation around bends and joints.
4. Reduces sound transmission through piping walls.
System Material: Multi-layered specialized elastomer
Thickness: Custom configured
Operation Range: Down to -196℃ (Liquid Nitrogen)
Application: LNG & extreme industrial applications
Primary Advantages:
1. Retains flexibility at extremely low temperatures to prevent cracking.
2. Eliminates condensation in cold environments.
3. Reduces structural stress from thermal expansion and contraction.
4. Robust system design for long-term cryogenic service.
Our employees is amazing in their own right, but together they are what makes Kingflex such a fun and rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first class service for our clients. We work closely to ensure every order—from the initial consultation to final delivery—meets our standards for quality and precision.
With eight professional engineers in our R&D Department, 6 professional international sales specialists, and 230 skilled production workers in our manufacturing department, we are equipped to support projects of all sizes.
Explore our specialized range, including high-temperature sheets, sound barriers, and cryogenic systems designed to meet diverse design needs.
We supply a comprehensive range of structural insulation materials, including glass wool, rock wool, and customized jackets.
High-density mineral fiber boards designed for high-temperature industrial ovens, partition walls, and soundproofing assemblies.
Flexible wire-mesh stitched industrial rock wool blankets designed for thermal protection on large-diameter pipelines.