Kingflex
Kingflex
Founded by the esteemed Jinwei Group, which boasts a rich legacy spanning over 40 years since its establishment in 1979, Kingflex Insulation Co., Ltd. stands as an industry-leading manufacturing and trading combo for thermal and cryogenic insulation solutions. Situated in Dacheng, China—historically celebrated as the capital of green-building materials—our facility integrates advanced Research & Development with smart production dynamics to manufacture eco-friendly, energy-saving systems.
As a pioneering force, Kingflex serves critical sectors such as aerospace, petrochemical processing, national defense, and industrial HVAC. We leverage eight dedicated R&D scientists, six expert international consulting representatives, and a skilled manufacturing force of over 230 workers. This guarantees high precision in closed-cell elastomer physics.
India’s massive push towards clean energy and localized chemical manufacturing has caused a spike in demand for cryogenic piping insulation. High-value projects such as LNG gasification terminals (in Gujarat, Odisha, and Maharashtra), green hydrogen fuel pipelines, and complex chemical processes demand materials that can survive extreme temperatures down to -200°C. General insulation degrades rapidly under these conditions due to condensation and subsequent structural cracking. Using NBR/PVC elastomeric foams provides high thermal resistance and complete moisture protection.
Selecting insulation for sub-zero and ultra-low applications requires a balance between low thermal conductivity ($\lambda$) and resistance to moisture vapor diffusion ($\mu$). In warm, humid environments like coastal Indian industrial zones, ambient moisture will naturally migrate towards the cold pipe.
Closed-Cell Rubber Foam features an even, dense structure with a closed-cell rate exceeding 98%. This design acts as a built-in vapor barrier. Unlike open-structured rock wool, which requires an external protective jacket and is prone to moisture absorption, Kingflex elastomeric foam maintains its thermal integrity even in high-humidity environments.
| Parameters | Black Rubber Foam Sheet Roll | Black Rubber Foam Pipe Section |
|---|---|---|
| Base Compound | Premium Nitrile-Butadiene Rubber (NBR/PVC) | Premium Nitrile-Butadiene Rubber (NBR/PVC) |
| Thickness Options | 6 mm to 50 mm | 9 mm to 40 mm |
| Inner Diameter (ID) | N/A (Roll Format) | 6 mm to 114 mm |
| Density Index | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Operational Temp. | -40℃ to +105℃ (Extended Cryo options available) | -40℃ to +105℃ (Extended Cryo options available) |
| Closed-Cell Rate | ≥ 98% | ≥ 98% |
| Fire Protection | Class 0 / Class 1 (BS 476), UL94, ASTM Compliant | Class 0 / Class 1 (BS 476), UL94, ASTM Compliant |
China’s scale in manufacturing offers three main advantages: volume consistency, raw material supply chain control, and rapid custom fabrication. Kingflex operates 5 large-scale automatic assembly lines, producing over 600,000 cubic meters annually. This scale helps stabilize pricing during raw material market swings.
For Indian distributors and contractors buying wholesale, importing from China ensures compliance with major international standards (BS 476, CE, REACH, ROHS, UL94, ASTM) at a lower cost per cubic meter than domestic Indian options. Kingflex also provides complete product traceability, ensuring every shipment has documented QC metrics from batch to transport.
Our shipping routes serve major Indian gateways, including Nhava Sheva (Mumbai), Chennai, Mundra, and Kolkata. Pricing varies based on raw material costs (nitrile monomer, PVC stabilizers), foam thickness, and fire rating requirements. Buying in bulk (FCL container loads) lowers freight costs and unit pricing. Our customized quoting system provides FOB, CIF, or CFR options to match your project budget.
Kingflex runs a comprehensive testing program. Below are genuine photos of our research labs, testing equipment, and international quality certifications.
Measuring heat transfer rates at low temperatures.
Inspecting rubber density profile consistency.
Confirming BS 476 Part 7 fire spread standards.
We build trust through transparency. Below, we share verified transcripts and feedback from clients who have integrated Kingflex products into major HVAC installations, LNG terminals, and cold storage facilities.
These reviews highlight our fast processing times, custom sizing, and transit packaging, which prevents crushing during long-distance shipping.
