Kingflex
Kingflex
Thermal design optimization is no longer just a structural requirement; it is a critical mandate for global industrial efficiency. In the modern era of commercial HVAC systems, complex refrigeration configurations, and heavy manufacturing installations, minimizing heat transfer is paramount. Closed Cell Elastomeric Nitrile Rubber (NBR) Insulation has emerged as the premier structural material to meet these rigorous demands.
Designed with a dense matrix of microscopic air pockets, NBR offers unmatched moisture resistance, structural flexibility, and superior thermal insulation properties. This makes it highly sought after for deep sub-zero refrigeration loops, heavy steam pipelines, and massive structural HVAC systems globally. NBR effectively prevents ambient thermal bridging, condensation, and corrosion under insulation (CUI).
In regions such as North America, Europe, and the Middle East, stringent energy efficiency standards and carbon reduction policies have accelerated the adoption of elastomeric foams. From commercial data centers in Northern Europe to district cooling networks in GCC countries, Kingflex elastomeric NBR/PVC systems provide durable performance across wide temperature ranges (-40℃ to 105℃).
With a stable thermal conductivity coefficient (λ ≤ 0.035 W/m·K at 0°C), Kingflex NBR prevents thermal energy dissipation. The evenly distributed closed-cell matrix minimizes convective heat transfer within the material structure.
Our closed-cell rate exceeds 98%, providing a high water vapor diffusion resistance factor (μ ≥ 10,000). This eliminates the need for separate vapor barriers, preventing moisture accumulation that can lead to mold and structural degradation.
Kingflex NBR/PVC is formulated to meet BS 476, Class 0, and Class 1 flammability classifications. It is self-extinguishing and features minimal smoke density development under fire conditions, prioritizing building safety.
Understanding the operational capabilities of Kingflex NBR is essential for matching the insulation to specific application demands. The structural properties below demonstrate why Kingflex remains a preferred choice for engineering teams globally.
| Property Parameter | Kingflex Standard Sheet Performance | Kingflex Flexible Tube Performance |
|---|---|---|
| Primary Material | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) Blend | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) Blend |
| Density Matrix Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Core Thickness Options | 6mm to 50mm | 9mm to 40mm (Inner Diameter: 6mm - 114mm) |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·k) at 0°C | ≤ 0.034 W/(m·k) at 0°C |
| Operating Service Limits | -40°C to 105°C | -40°C to 105°C |
| Compression Resilience | ≥ 80% Elastic Recovery | ≥ 80% Elastic Recovery |
| Flame Spread Ratings | Class 0 / Class 1 (BS 476 Part 6 & 7), UL94 V-0 | Class 0 / Class 1 (BS 476 Part 6 & 7), UL94 V-0 |
Established by the Jinwei Group, which boasts a heritage of over 40 years, Kingflex began its operational path in 1979 as the first manufacturer of thermal insulation materials north of the Yangtze River. Today, our research, development, and primary production divisions are located in Dacheng, China—a hub for green building materials.
Our operation integrates R&D, manufacturing, domestic distribution, and international sales. Kingflex prioritizes energy conservation and consumption reduction. We offer comprehensive solutions through technical consultation, custom material design, installation guidance, and dedicated post-sale support, helping drive development in the global building materials sector.
Our team consists of 8 professional engineers in our R&D department, 6 international sales specialists, and 230 skilled production employees. This structured workforce ensures consistent product quality and reliable supply chains for major global construction and industrial projects.
The manufacturing efficiency of Chinese factories, particularly within the Dacheng green building materials cluster, is powered by strong raw material supply chains, specialized machinery, and skilled labor. Kingflex operates 5 large-scale automatic assembly lines, enabling rapid scale-up for high-volume orders without compromising quality.
Our streamlined operations allow us to handle large-scale orders efficiently, ensuring short lead times for international projects. This vertical integration allows us to optimize resource use, reduce waste, and pass cost savings directly to global buyers, contractors, and distributors.
In addition, our designation as a primary supplier by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry reflects our long-term reliability and compliance with national and international quality standards.
Kingflex NBR sheet rolls and pipes are widely used to insulate air ducts and chilled water pipelines. They effectively prevent condensation, moisture buildup, and energy loss in hotels, shopping centers, and medical facilities.
Provides reliable thermal insulation for process lines, steam transport networks, and storage tanks. Its high chemical resistance helps protect pipelines from corrosion and chemical degradation in harsh environments.
Specially engineered for sub-zero and ultra-low temperature applications down to -40°C. Ideal for cold storage facilities, transport systems, and LNG distribution lines, maintaining structural flexibility and thermal performance.
Perfect for large-surface areas, complex air ducts, and flat industrial surfaces where wrap-around insulation is required.
Specifically designed to protect copper pipelines, carbon steel pipes, and complex industrial lines from thermal transfer.
Our dedicated R&D department works continuously to improve the thermal efficiency, fire safety, and environmental performance of our elastomeric insulation products. By using advanced laboratory testing, we ensure that every batch of Kingflex insulation complies with major international regulatory standards.
Kingflex insulation products are certified to meet major international performance standards, ensuring compliance and quality across various global markets:
We collaborate closely with procurement managers, engineering firms, and distributors worldwide. Our responsive communication and direct shipping arrangements help ensure project timelines are met.
Procurement teams are increasingly shifting from focusing solely on initial material costs to evaluating total lifetime value. NBR insulation helps reduce long-term costs by preventing moisture infiltration and minimizing corrosion under insulation (CUI), which protects physical piping structures.
Sustainability Regulations: As countries implement stricter carbon reduction targets, construction projects prioritize low-VOC, halogen-free, and energy-efficient building materials. Kingflex NBR foam is formulated to align with green building standards, including LEED certification.
Smart Logistics Integration: Large projects require reliable scheduling. Kingflex works with major shipping hubs to ensure seamless customs clearance and container tracking, providing predictable delivery timelines for international orders.
It is primarily used for HVAC ducts, air conditioning piping networks, building thermal barriers, and industrial cold-line insulation. NBR foam is also used for sound dampening in mechanical equipment rooms.
Yes, our rubber foam products are formulated to be flame-retardant, meeting international safety standards such as BS 476 (Class 0 and Class 1) and UL94 V-0, ensuring compliance with commercial construction codes.
Rubber foam features a flexible, closed-cell structure with inherent water vapor resistance, making it ideal for cooling and HVAC systems. Rock wool has an open fiber structure that offers high-temperature resistance and fire protection, making it suitable for high-temperature steam lines.
Yes, we offer OEM and ODM services. We can customize density, wall thickness, sheet dimension parameters, and adhesive backings to meet specific project guidelines.
Our materials are tested and certified under standards including BS 476, CE, REACH, RoHS, UL94, and ASTM, ensuring compliance for international building and industrial projects.
Yes. Every production run undergoes quality control checks, with batch numbers and test reports stored to ensure full traceability from raw materials to the delivered product.
We can manufacture NBR foam sheets in thicknesses ranging from 6mm to 50mm, allowing for thermal performance optimization based on project specifications.
Under normal operational conditions and when installed according to manufacturer guidelines, Kingflex rubber foam insulation offers a service life of approximately 10 to 15 years.
