High-performance elastomeric and synthetic solutions designed for ultra-low temperature, LNG storage, and complex piping systems across metropolitan Seoul.
High-performance NBR/PVC blended tubing engineered to prevent condensation on cryogenic process lines.
Flexible closed-cell sheet rolls with extreme water vapor resistance for large-diameter storage and cooling tanks.
Optimized elastic properties engineered to maintain flexibility down to -200°C environments.
Heavy-duty structural cryogenic insulation system customized for LNG terminals and massive storage facilities.
The global cryogenic insulation market is undergoing unprecedented expansion, driven by the clean energy transition, the growth of liquefied natural gas (LNG) supply chains, and the rapid scale-up of aerospace infrastructure. As industries pivot toward decarbonization, cryogenic liquids like LNG (-162°C) and liquid hydrogen (-253°C) are emerging as critical pillars. Managing thermal performance at these absolute temperatures demands insulation materials that possess superior thermal conductivity properties, complete resistance to water vapor ingress, and structural resilience against severe thermal shock.
Historically, rigid foams and cellular glass dominated cryogenic piping and tanks. However, contemporary technological roadmaps favor flexible, closed-cell elastomeric rubber foams due to their simple installation profiles, resistance to stress-cracking, and lower total lifecycle cost.
Seoul, as one of Asia's most densely populated megacities, relies heavily on complex energy and high-technology distribution infrastructures. The Gyeonggi-Seoul metropolitan zone houses critical gas receiving terminals (such as the nearby Incheon LNG terminal) that supply industrial gas and thermal energy to millions. Moreover, South Korea’s booming high-tech manufacturing corridors—specifically semiconductor cleanrooms in nearby Pyeongtaek and Yongin—utilize vast quantities of ultra-pure liquefied nitrogen (LN2) and argon (Ar) for wafer fabrication.
In these metropolitan environments, safety, space optimization, and noise mitigation are strictly regulated. The integration of high-density elastomeric cryogenic foam insulation shields piping systems from ambient humidity, preventing heavy condensation, ice build-up, and systemic corrosion (CUI) within critical urban utility lines.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our state-of-the-art research development and production department is situated in the well-known capital of green-building materials in Dacheng, China. As an energy-saving, environmentally friendly enterprise, we concentrate on advanced research, development, production, and worldwide sales.
In operation, Kingflex takes energy saving and consumption reduction as its core concept. We provide integrated solutions regarding insulation by means of expert consultation, research & development, production, installation guidance, and dedicated post-sale services to lead the development of the global building materials and industrial piping industries.
Our parent group, the Jinwei Group (established in 1979), carries more than 40 years of pioneering history as the first manufacturer of thermal insulation materials north of the Yangtze River.
Comparing advanced NBR/PVC elastomeric formulations against conventional materials showcases the performance advantages of closed-cell technologies for cold energy systems.
| Performance Characteristic | Kingflex Cryogenic Elastomeric Foam | Conventional Cellular Glass | Traditional Rock Wool |
|---|---|---|---|
| Operating Temperature Range | -200°C to +105°C | -260°C to +430°C | Up to +650°C (Not suitable for deep cold) |
| Thermal Conductivity (at 0°C) | ≤ 0.035 W/(m·K) | ≤ 0.042 W/(m·K) | ≤ 0.038 W/(m·K) |
| Water Vapor Permeability | Excellent (Closed-cell barrier μ ≥ 10,000) | Impermeable (High fragility) | Highly Permeable (Requires vapor barrier) |
| Flexibility & Vibration Resistance | High resilience, absorbs vibration easily | Extremely brittle, subject to cracking | Fibrous, prone to settling & packing |
| Installation Complexity | Low (Flexible sheets/tubes, easy cut) | High (Requires expansion joints & sealant) | Medium (Requires structural jackets) |
Supported by 8 dedicated design engineers, our R&D wing develops chemical matrix modifications to optimize elastomeric behavior under rapid temperature drop cycles.
Testing includes BS 476, CE, REACH, RoHS, UL94, and ASTM certifications, validating safety profiles across heavy industrial environments.
Delivering heavy insulation arrays via optimized shipping directly to major infrastructure and shipping hubs in Seoul and worldwide.
An inside look at our 5 automated production lines and comprehensive testing labs ensuring dimensional stability and thermal consistency.











Real-world deployment of flexible elastomeric sheet insulation and pre-formed tubing on cold-gas lines and industrial piping networks.
Material Structure: NBR/PVC Closed-cell blend
Thickness Available: 6mm - 50mm
Density Range: 40 - 55 kg/m³
Operational Range: -40℃ to +105℃ (Extended systems down to -200℃)
Material Structure: NBR/PVC Elastomeric Tube
Wall Thickness: 9mm - 40mm
Internal Diameter (ID): 6mm - 114mm
Density: 40 - 55 kg/m³
















Verification of our global customer outreach, service responsiveness, and strict quality control standards.





Explore our complete catalog of factory-priced elastomeric tubing, synthetic rubber rolls, and cryogenic system wraps.
High-performance synthetic elastomer rolls customized for local storage facility shielding.
Multi-color insulation tubes engineered for high-temperature and solar thermal water lines.
Integrated layered insulation assembly providing high barrier performance for industrial pipelines.
Our premier deep-cryo solution qualified for extreme gas storage applications down to -200°C.
Eco-friendly flexible compound providing continuous protection with minimal environmental footprint.
Optimized closed-cell foam profile offering dynamic elasticity under heavy cryo contraction.
Standard flexible materials ideal for retrofitting existing facilities and urban central heating loops.
Universal formulation covering wide thermal margins from refrigeration to warm industrial steam lines.
Further solutions including high-durability NBR-PVC compounds and low-temperature elastomeric layers.
To provide complete thermal management solutions, we also supply rock wool products for high-temperature applications.
As energy densities surge and the spatial constraints of metropolitan systems tighten, standard insulation installations are no longer sufficient. Kingflex offers macro engineering solutions that coordinate structural thermal performance from planning stages to post-installation service checks.
Rather than selling individual insulation materials, we supply fully integrated systems. Our team provides custom-cut sheets, pre-slit tubes, specialized cold-energy adhesive compounds, and protective jackets (such as UV-resistant cladding or multi-layer metal sheet covers).
Corrosion Under Insulation (CUI) remains a massive risk in cryogenic systems due to micro-fissure condensation. Kingflex’s elastomeric foam has a closed-cell rate exceeding 98%, creating a continuous moisture-proof barrier that isolates the pipe surface from atmospheric oxygen and moisture.
We supply specialized field installation manuals and support. Our engineering consultants are equipped to assist municipal contractors and industrial site managers in Seoul, ensuring joints, seams, and contraction gaps are correctly detailed to avoid thermal bridging.
Detailed answers regarding cryogenic systems, material handling, certifications, and project supply capabilities.
Request design drawings, product catalogs, pricelists, or test reports. Our technical sales team is ready to assist.