Kingflex
Advanced closed-cell elastomeric structures providing zero condensation and minimized thermal bridging for high-performance buildings.
Navigating Germany's strict building envelope regulations with certified insulation solutions.
German architectural policies require highly restrictive outgassing and toxic emission standards (low VOCs). Our NBR/PVC elastomeric formulations are rigorously designed to align with DGNB criteria, securing optimal Ecological Quality (ENV1.2) evaluation points by eliminating chlorinated paraffins and heavy-metal blowing agents from our standard production runs.
Compliance with the European Standard EN 14304 ensures that our elastomeric products achieve outstanding Euroclass classifications (B-s3, d0). Meeting BS 476 Part 6 & 7 requirements for flame spread resistance, our insulation materials guarantee minimized contribution to toxic smoke density, a crucial prerequisite for commercial German public projects.
With localized supply chain transparency, we provide comprehensive chemical composition mapping to assure EU importers of full compliance with REACH Annex XVII restrictions. In addition, zero halogen options are developed to withstand extreme design variables while guaranteeing environmentally friendly decommissioning phase properties.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our R&D and production facility is located in Dacheng, China—widely recognized as the global epicenter of green-building materials. Concentrating heavily on advanced thermal dynamics and environmental preservation, Kingflex operates with energy saving and consumption reduction as its core pillars.
We provide full-lifecycle structural insulation solutions—spanning from raw material design, automated formulation, density tuning, structural validation, and custom extrusion to dedicated on-site installation consulting and comprehensive post-sale systems auditing.
Established under the aegis of the renowned Jinwei Group (founded in 1979), Kingflex inherits over 40 years of pioneering research in high-performance building materials. As the first thermal insulation manufacturer established north of the Yangtze River, the group laid the groundwork for today's hyper-efficient elastomeric polymers.
This deep institutional expertise enables us to achieve unprecedented scale, making Kingflex the designated supplier for high-profile governmental industrial installations (Ministry of Energy, Ministry of Chemical Industry) while exporting premium rubber foam sheet rolls and pipes to over 66 nations.
Standardizing mechanical specifications to fit the demands of international contractors and industrial design institutes.
Global architectural firms require absolute precision in parameter validation. Kingflex provides detailed ASTM, BS, and EN laboratory documentation. From density variance stabilization (maintaining a precise 40-55 kg/m³ range) to optimizing the water vapor resistance factor (μ ≥ 10,000), our materials prevent moisture penetration, maintaining long-term k-value stability.
Operating 5 high-speed automated lines allows Kingflex to fulfill large-scale orders without delaying construction milestones. By coordinating production runs at our Dacheng industrial hub and utilizing streamlined logistics via close ports (Tianjin/Qingdao), we reduce transit times for major regional distribution centers in Europe and North America.
We supply specialized cladding materials, including aluminum foil laminates, self-adhesive backing coatings, and specific color-coded NBR sheet configurations. This custom formulation capability enables structural engineers to utilize our materials directly in complex pre-insulated pipe-in-pipe designs.
Analyzing the shift toward low-conductivity closed-cell technology and long-lifecycle construction materials.
The global thermal insulation market is rapidly transitioning from standard fibrous wools to high-performance elastomeric closed-cell foams. While traditional materials suffer from moisture absorption—which significantly degrades thermal performance—modern NBR/PVC polymers form an impermeable barrier to ambient moisture, preventing mold growth and mitigating Corrosion Under Insulation (CUI) in industrial steel piping networks.
| Mechanical & Physical Properties | Kingflex NBR/PVC Standard Values | International Standards Reference |
|---|---|---|
| Density Range | 40 - 55 kg/m³ | ASTM D1622 / EN 1602 |
| Thermal Conductivity (λ) | ≤ 0.032 W/(m·K) at 0°C | ≤ 0.035 W/(m·K) at 40°C | ASTM C518 / ISO 8301 |
| Water Vapor Permeability (Factor μ) | ≥ 10,000 (Closed-cell rate > 98%) | BS EN 12086 / ASTM E96 |
| Fire Performance Classifications | Class 0 / Class 1, Euroclass B-s3, d0, UL94 V-0 | BS 476 Part 6/7, EN 13501-1 |
| Service Temperature Limit | -40°C to +105°C (Up to -200°C for Cryogenic systems) | ASTM C411 / EN 14706 |
| Compression Resilience | Over 80% recovery rate | ASTM D1056 |
Tailoring Kingflex elastomeric systems for modern green buildings and heavy industrial plants.
Preventing external condensate formation on chiller supply lines is vital in high-occupancy spaces like malls, hotels, and hospitals. Our high water-vapor resistance ensures long-lasting prevention of water damage to ceiling structures while reducing energy usage in forced-air ventilation networks.
Sub-zero logistics require specialized, multi-layered cryogenic insulation systems. Kingflex's low-temperature formulations prevent stress cracking and structural failures under thermal shock down to -200°C, making them suitable for LNG storage, cryogenic transfer lines, and cold-chain facilities.
Due to its open/closed hybrid cellular structure, Kingflex Soundproof Insulation absorbs fluid movement noise inside high-velocity drainpipes and mechanical pump casings, satisfying German DIN 4109 structural acoustics requirements for residential and office spaces.
Showcasing the team, international certifications, and successful projects behind the Kingflex brand.
Our employees are outstanding professionals, but together they form the cohesive force that makes Kingflex a leading insulation manufacturer. The Kingflex team shares a unified vision: delivering top-tier insulation solutions and responsive customer service globally.
To support this goal, our organization includes a dedicated R&D department staffed by 8 professional engineers, a global trade division with 6 international sales consultants, and a production team of 230 technicians operating our manufacturing facility.
Precise geometry parameters designed for mechanical consultants, heating engineers, and design institutes.
Material Structure: Synthetic NBR/PVC elastomer polymer matrix.
Available Thicknesses: 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, up to 50mm.
Density Range: 40 - 55 kg/m³ for high-density durability.
Service Temperature Limits: -40℃ to 105℃ surface contact range.
Key Performance Advantages: Consistent closed-cell structure (≥98% cell density) prevents convective air transfer. High structural elasticity allows for easy wrapping around complex duct elbows and HVAC systems.
Material Structure: Extruded NBR/PVC elastomeric tube lining.
Available Thicknesses: 9mm, 13mm, 19mm, 25mm, 32mm, 40mm.
Inner Diameter Range (ID): 6mm up to 114mm for standard copper and steel pipes.
Mechanical Features: Greatly reduces the risk of water pipe freezing and cracking. Extruded with a smooth skin texture to reduce surface air friction and moisture accumulation.
Expert clarifications regarding testing standards, custom manufacturing, and global project coordination.
A1: It is primarily used for commercial and industrial HVAC duct systems, air conditioning chilled and hot water pipes, building thermal insulation, industrial process piping, and cold-chain/cryogenic acoustic and thermal insulation. Its closed-cell structure prevents moisture accumulation, making it suitable for preventing condensation on cold utility lines.
A2: Yes. Kingflex rubber foam is formulated with flame retardants to meet BS 476 Part 6 & 7 Class 0/Class 1 ratings, Euroclass B-s3, d0, and UL94 V-0 flame-retardant standards. This ensures the material is self-extinguishing and produces minimal smoke density in structural fire scenarios.
A3: Rubber foam is highly flexible, features a closed-cell physical structure, and is highly resistant to water vapor. This makes it suitable for HVAC, chilled-water, and cryogenic applications. Rock wool (mineral fiber) is open-cell and resistant to high temperatures, making it suitable for industrial steam piping and high-heat furnace systems.
A4: Yes. We offer comprehensive OEM/ODM manufacturing, including custom wall thicknesses (6mm up to 50mm), custom colors, self-adhesive backing configurations, and factory-applied protective cladding (like aluminum foil or weatherproof polymers).
A5: Our materials are certified under BS 476, CE, REACH, RoHS, UL94, and ASTM. This ensures compliance with regional environmental regulations, including European REACH and Germany's DGNB green building standards.
A6: Yes. Every production batch of Kingflex sheets, rolls, and pipes is labeled with raw material batch numbers and manufacturing stamps. This guarantees full traceability from the initial polymer mixing stage to the finished product.
A7: We can produce thicknesses from 6mm up to 50mm, allowing for tailored insulation depth to meet specific thermal and condensation requirements.
A8: When installed according to manufacturer guidelines, Kingflex rubber insulation has an operational service life of approximately 10 to 15 years, depending on environmental factors and UV exposure.
Premium flexible thermal and cryogenic tubing lines, engineered to maintain low energy loss in commercial and industrial settings.
