Reinforced structure engineered for rapid installation on marine hulls & logistics HVAC systems.
Extreme low-temperature resilience, perfect for liquefied gas pipelines at Busan shipyards.
Multi-layered thermal barrier designed for cryogenic tanks and marine terminal processing lines.
Designed for offshore structures, providing sustained elastic flexibility down to -200°C.
As Northeast Asia's primary maritime hub and the world’s sixth busiest container port, Busan, South Korea, stands at the intersection of heavy marine engineering, cryogenic gas transport, and advanced coastal construction. The humid coastal climate of Busan, combined with strict marine safety regulations governed by organizations such as the Korean Register (KR), demands high-specification thermal insulation solutions that resist moisture intrusion, prevent galvanic corrosion, and offer class-leading fire safety.
Closed-cell elastomeric rubber foam insulation sheet rolls represent the pinnacle of modern thermal management. Specifically engineered to combat condensation on chilled water pipes, HVAC air ducts, and cryogenic LNG transfer systems, our NBR/PVC elastomeric structures ensure stable thermal conductivity ($\lambda \le 0.034$ W/m·K at 0°C) even under severe marine salinity and high relative humidity.
Our rubber foam insulation systems are engineered to address the specific performance parameters required by major commercial, industrial, and maritime sectors across the metropolitan area of Busan.
Busan's shipbuilding industry requires materials that adhere to the International Maritime Organization (IMO) FTP Code. Our elastomeric rubber foam sheets provide fire retardancy (Class 0 / Class 1) and low toxicity index values, ensuring safety in passenger decks, cargo areas, and engine rooms.
Large-scale seafood refrigeration facilities and cold-chain warehouses operating near the Port of Busan rely on continuous cryogenic insulation. The closed-cell structure prevents ice buildup and maintains high thermal integrity for low-temperature storage tanks and process pipelines.
For high-density urban zones such as Haeundae LCT and Centum City, high-performance HVAC systems require dust-free and fiber-free acoustic/thermal insulation. Kingflex elastomeric foam sheets ensure excellent air quality without the risk of fiber shedding.
Driving the future of green thermal design with sustainable polymers, halogen-free additives, and advanced manufacturing processes.
Refining the nitrogen-injected cell structure to achieve micro-cavity sizing, reducing thermal radiation pathways across the sheet roll surface.
Integrating plant-based elastomers to lower the embodied carbon footprint, meeting the stringent ESG criteria set by global developers and shipbuilders.
Developing hybrid rubber-aerogel structures to handle extreme cryogenic applications down to -200°C, providing superior thermal defense with reduced thickness profiles.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our dedicated research, development, and production departments are located in Dacheng, China—widely recognized as the capital of energy-saving green building materials. As an environmental-friendly enterprise, we concentrate on the research, development, production, and global sales of premium elastomeric systems.
In our daily operations, Kingflex prioritizes energy saving and consumption reduction. We provide end-to-end thermal solutions through strategic consultation, targeted research, advanced manufacturing, installation guidance, and dedicated post-sale services, leading the development of the global building materials industry.
Established by the Jinwei Group, which boasts a history of more than 40 years (established in 1979 as the first manufacturer of thermal insulation materials north of the Yangtze River), Kingflex brings unparalleled heritage and expertise to every commercial project.
Our employees are outstanding professionals, and together they make Kingflex a leading force in thermal insulation manufacturing. The Kingflex team is a tight-knit, talented group aligned with a shared vision of providing first-class service to our international clients.
Our current capabilities include:
Kingflex has been recognized as a designated production enterprise by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.



Operating in global markets and high-profile regions like Busan requires absolute compliance with national and international regulatory frameworks. Kingflex products undergo continuous testing and inspection.




Our elastomeric rubber foam insulation rolls and related systems are certified under major regulatory programs:
With our advanced manufacturing facility located in Dacheng, China, we operate close to major northern Chinese shipping ports (Tianjin and Qingdao). This geographical advantage allows us to support fast transit routes to Busan Port.
Key advantages of our supply chain integration:
Designed for large flat surfaces, industrial ductwork, and big-bore pipe configurations.
| Parameter | Value |
|---|---|
| Material Base | Nitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) Blend |
| Standard Thickness | 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm, 50mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ (Extended Cryogenic Series down to -200℃) |
| Closed-Cell Ratio | > 98% |
Engineered for seamless pipe installations on copper cooling lines and HVAC systems.
| Parameter | Value |
|---|---|
| Standard Pipe Thickness | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm |
| Inner Diameter (ID) Range | 6mm to 114mm (Supports standard copper and steel pipes) |
| Blowing Agent | Nitrogen Gas (CFC/HCFC-Free) |
| Water Vapor Absorption | Very Low, Self-Sealing Matrix |
















Real-time communication, rapid response, and transparent procurement verification are core components of our global operations.





High elasticity and uniform cell distribution for optimal performance.
Excellent thermal isolation and noise absorption capacity.
Resists saltwater air degradation and atmospheric corrosion.
Prevents energy loss on critical air-supply networks.
Durable barrier for heavy machinery rooms and pipe bends.
Optimized flexibility facilitates quick coverage of complex shapes.
Features aggressive tack adhesive backing for quick installation.
Provides color coding for safe, rapid identification of fluid lines.
Reinforced surface handles weathering on outdoor marine setups.
Foil protective layer provides high puncture resistance.
Available in various colors to meet safety identification standards.
Combines high elasticity with an integrated, user-friendly peel-and-stick layer.
Get technical answers regarding standard compliance, marine installation, and logistic operations to Busan.
NBR/PVC elastomeric foam features a highly dense, closed-cell structure (exceeding 98% closed cells). In marine environments (such as onboard ships or at ports), this closed structure prevents moisture vapor intrusion and blocks salt-laden sea air, reducing the risk of corrosion under insulation (CUI) on copper or stainless steel pipelines.
We manufacture standard thicknesses from 6mm to 50mm. For specific thermal, cryogenic, or acoustic requirements, we support OEM customization including low-density options, self-adhesive backing, and protective coverings (such as weather-resistant aluminum foil).
Our products carry certifications for major international standards, including BS 476 (Class 0 and Class 1), UL94 (V-0 rating), CE, REACH, and RoHS. Additionally, they are formulated to release minimal smoke and toxins in the event of fire, making them suitable for confined marine decks.
Elastomeric rubber foam is highly flexible, closed-cell, and moisture-proof, making it particularly effective for HVAC, refrigeration, and condensation control. Rock wool is a fibrous material suited for high-temperature applications and fire containment barriers, but requires a separate outer vapor barrier in cooling applications to prevent moisture absorption.
Yes, all Kingflex shipments include comprehensive quality documentation and product traceability records, tracing the material back to its manufacturing batch and quality inspection report.
When installed according to specifications and protected from direct physical damage or extreme UV radiation (e.g., by utilizing our aluminum foil-faced sheets outdoors), our elastomeric materials have an operational lifespan of 10 to 15 years.
Bulk shipments are dispatched from our northern Chinese production base via regional container ports (Qingdao/Tianjin) directly to Busan Port. The transit time is typically 2 to 3 days, allowing for fast replenishment and minimal logistics costs.
Partner with Kingflex to access high-performance closed-cell elastomeric rubber foam insulation rolls, backed by 40+ years of industrial manufacturing experience.