Explore our high-performance closed-cell elastomeric sheets, rolls, and tube systems designed for extreme temperature environments.
Kingflex Insulation Co., Ltd. stands as a premier manufacturing and trading conglomerate dedicated exclusively to the advanced research, development, and high-volume fabrication of elite thermal insulation materials. Strategically based in Dacheng, China—historically celebrated as the national capital of green-building materials—we operate at the intersection of environmental stewardship and operational engineering.
By leveraging a deep supply chain footprint, we offer comprehensive project consultations, custom component engineering, on-site installation guidance, and global post-sale service. We operate with a strict focus on energy efficiency, facilitating carbon reduction goals for heavy-industry infrastructure worldwide.
Rooted in the structural integrity of the Jinwei Group (established in 1979), Kingflex inherits over 40 years of thermal material manufacturing expertise. Historically recognized as the pioneer manufacturer of thermal insulation materials north of the Yangtze River, this deep lineage guarantees that every roll, tube, and sheet leaving our assembly lines meets the rigorous testing requirements of modern civil and industrial projects.
Analyzing the macro-economic and engineering benefits of sourcing high-performance elastomeric insulation from our advanced production facilities.
Equipped with 5 massive automated assembly lines, our facility outputs 600,000+ cubic meters annually. This high-throughput capacity ensures that large-scale global procurements for national grids, aerospace projects, and massive HVAC installations maintain minimal lead times and unmatched batch-to-batch consistency.
Our dedicated R&D team includes 8 professional thermal engineers pushing boundaries in closed-cell gas retention, elastomeric polymerization, and non-halogenated environmental compliance. We produce solutions targeting specific physical parameters including ultra-low thermal conductivity (λ) and robust water vapor resistance (μ).
Operating out of Dacheng, the green-building epicenter of China, provides us with localized supply chains for raw elastomers, foaming agents, and specialized foil claddings. These logistics efficiencies are directly passed on to our clients as highly competitive tier-1 commercial rates.
Engineered for mission-critical operations across diverse industrial sectors.
Designed for liquified natural gas (LNG) pipelines, petrochemical processing plants, and marine shipping pipelines. Our multi-layered cryogenic elastomeric solutions mitigate structural thermal stress, prevent moisture ingress, and reduce the risk of Corrosion Under Insulation (CUI).
Optimized for commercial real estate developments, high-traffic medical facilities, and large-scale public transit systems. Kingflex insulation minimizes energy losses from chilled and hot water loops, while mitigating acoustic vibrations.
Original dimensional standards and structural properties tested across global compliance systems.
Material Structure: NBR/PVC-based closed-cell elastomeric foam.
Standard Dimensions: Thickness options range from 6mm to 50mm.
Density: 40-55 kg/m³ for optimal balance between thermal performance and mechanical flexibility.
Service Temperature: -40℃ to 105℃.
Key Advantages:
Material Structure: High-density NBR/PVC blend tailored for linear pipeline geometries.
Standard Dimensions: Thickness 9mm to 40mm | Inner Diameter (ID): 6mm to 114mm.
Density: 40-55 kg/m³.
Service Temperature: -40℃ to 105℃.
Key Advantages:
To maintain our standing as a designated supplier to state energy, electricity, and chemical departments, we operate under traceably documented quality-control framework. All raw NBR materials and finished elastomeric foams undergo rigorous thermal conductivity, flame progression, and vapor barrier verification.
Our product lines carry compliance certificates across major regional standards including BS 476, CE, REACH, ROHS, UL94, and ASTM. Each batch is printed with traceability marking codes allowing contractors and QC managers to track products back to their precise chemical batch and extrusion line.
Understanding the transition to high-performance insulation systems in the modern regulatory climate.
Environmental standards increasingly prohibit the use of halogenated flame retardants. Our advanced R&D department continues to develop high-safety halogen-free formulations that preserve top-tier fire suppression ratings without emitting toxic smoke in critical transport infrastructure.
Traditional fibrous insulation absorbs water, triggering severe corrosion underneath. Our closed-cell polymers create an impervious seal directly on pipelines, eliminating oxygen and moisture access to carbon steel, thereby reducing system failures.
Global procurement teams require unique parameters. We leverage our R&D resources to customize densities, paint claddings, self-adhesive layers, and customized outer foil coatings to optimize performance on specific municipal sites.
Proof of direct client support and commercial communication transparently displayed.




Actionable technical answers addressing design requirements, thermal characteristics, and compliance certifications.
Kingflex insulation materials successfully integrated into infrastructure projects around the world.
Deep-temperature cryogenic sheets, halogen-free tubing, and heavy duty insulation systems.