Premium closed-cell elastomeric rubber foam sheets and piping solutions designed for commercial HVAC, cryogenic processing, and process pipeline systems.
Established as a premier manufacturing and trading combination for thermal and cold insulation systems, Kingflex Insulation Co., Ltd. has positioned itself at the forefront of the global green building materials sector. Operating from Dacheng, China—widely recognized as the national capital of green construction insulation—our modern facility integrates scientific research, mechanical engineering, raw material synthesis, and global B2B supply chains.
Our parent entity, the Jinwei Group (also known as Kingway Group), boasts a rich manufacturing history dating back to 1979. As the pioneer manufacturer of thermal insulation materials north of the Yangtze River, we have built over 40 years of continuous manufacturing experience. Kingflex focuses on "energy saving and consumption reduction" as our operational core, providing bespoke insulation consultation, post-sale guidance, and engineering alignment across sixty-six countries.
Our advanced NBR/PVC elastomeric rubber foam insulation is engineered with a uniform closed-cell matrix (rate >98%) to guarantee long-term thermal resistance and vapor defense.
Standard Dimensions: Material: Premium NBR/PVC | Thickness: 6mm - 50mm | Density: 40 - 55 kg/m³ | Operating Temperature Range: -40℃ to 105℃ (Deep cryogenic configurations available down to -200℃).
Primary Advantages: Evenly distributed microscopic cells; vapor transmission resistance index ($\mu$) ≥ 10,000; compression resilience recovery rate >80%; highly fire-retardant with self-extinguishing safety metrics.
Dimensional Range: Thickness: 9mm - 40mm | Inner Diameter (ID): 6mm - 114mm | Base polymer: NBR/PVC synthetic rubber blend.
Core Features: Advanced extrusion mapping ensures precise wall-thickness uniformity; extremely flexible layout properties simplifying installation around complex elbows, joints, and valving; reduces risk of pipeline thermal bridging and condensation-induced corrosion (CUI).
Our raw material compounding uses state-of-the-art closed-chamber mixers, ensuring precise dispersion of active chemical foaming agents, fire retardants, and anti-aging compounds. This process ensures that the finished material maintains a low thermal conductivity ($\lambda \le 0.034$ W/m·K at 0°C), minimizing heat gain or loss over a long service life.
By leveraging the geographical cluster advantage of Dacheng, China, Kingflex provides global supply chain reliability, competitive bulk pricing, and high volume production output.
Kingflex runs 5 large automatic assembly lines, generating an annual capacity exceeding 600,000 cubic meters. This immense production power has led to Kingflex being designated as an official manufacturing supplier by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry of China.
Our production advantage translates to consistent dimensional tolerances, optimized material density, and reliable delivery lead times. The Dacheng geographical cluster allows us to maintain direct pipelines for premium synthetic rubber, PVC resins, and fire retardant additives, insulating our international clients from sudden raw material price shocks or supply disruptions.
Our workforce features 8 specialized research & development engineers focused on chemical synthesis and polymer thermodynamics, 6 international trade consultants handling global compliance, and over 230 trained factory workers ensuring 24/7 manufacturing precision.
We manufacture in strict compliance with international fire, environmental, and mechanical performance standards to ensure regulatory alignment at your project destination.
To pass rigorous building inspection procedures globally, insulation materials must present verifiable, third-party credentials. Kingflex products carry approvals for major global standards including:
Additionally, Kingflex maintains an active traceability protocol. Every batch is cataloged via database codes, linking raw material test logs, chemical mixing temperatures, extrusion speed, curing cycles, and QC stamps. This allows tracking from raw materials to delivery site.
Tailored to withstand demanding operational conditions, from cryogenic liquid pipelines to high-humidity commercial building HVAC systems.
Prevention of surface condensation on chilled water pipes, refrigeration lines, and air distribution ducts. The high moisture resistance factor ($\mu \ge 10,000$) eliminates the need for external vapor barriers, saving installation labor and materials.
Specialized elastomeric formulations suitable for industrial cryogenic facilities, including LNG storage and process pipelines operating down to -200℃. Keeps structural flexibility intact to prevent stress cracking from thermal contraction.
Designed for public rail transit carriages, marine offshore vessels, and microelectronics cleanrooms. In fire situations, the halogen-free polymer prevents the release of toxic acid gases and dense smoke, protecting equipment and lives.
The open-and-closed combination cellular structures of Kingflex rubber sheets absorb acoustic vibrations, making them excellent choices for lining fan coil plenums, equipment rooms, and utility ducts.
Verifiable transaction and technical support communications from global engineering contractors procuring Kingflex systems.
We work directly with engineering procurement managers and consultants, resolving technical challenges in refrigeration, thermal bridging, and acoustic treatments. From shipping layout configurations to on-site installation guidance, our team provides support to ensure seamless integration.
A look inside our manufacturing processes, showcasing raw material extrusion, vulcanization ovens, quality control sorting, and shipping preparation.
Beyond NBR/PVC elastomeric rubber foam materials, Kingflex group factories also produce high-temperature Rock Wool board and Rock Wool insulation blankets. This provides mechanical piping contractors with a single procurement path for both cold-insulation and high-temperature thermal protection systems.
Technical specifications, application parameters, and procurement queries answered by our lead design engineering department.
Wholesale-ready, factory-direct elastomeric thermal materials suitable for bulk commercial import.
Kingflex