Kingflex
Kingflex
Modern building and industrial design demands high-efficiency solutions that minimize energy loss, manage condensation, and promote indoor environmental quality. Among the variety of insulation materials currently available, elastomeric rubber foam is recognized as a leading choice for thermal and cold insulation systems.
Composed of synthetic elastomers like Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC), this material is designed to feature a dense, closed-cell structure. Each tiny, gas-filled cell functions as an independent barrier against thermal transmission and moisture penetration. This structure ensures that even when exposed to high relative humidity, the thermal conductivity remains stable, preventing moisture absorption that could lead to insulation breakdown or structural corrosion.
The performance of closed-cell elastomeric rubber foam is defined by its high resistance to water vapor transmission. When cold pipes drop below ambient dew point temperatures, traditional fibrous insulation materials require separate vapor barriers that can tear or degrade. Rubber foam features a built-in vapor retarder, protecting critical HVAC systems and chilled water lines from corrosion under insulation (CUI) without requiring additional protective layers.
Kingflex operates within Dacheng, China—a hub for green building materials. This concentration supports a robust supply chain, providing direct access to raw materials and manufacturing technologies.
Equipped with 5 automatic assembly lines, our facility achieves annual outputs exceeding 600,000 cubic meters. Precise control systems ensure uniform foam cell distribution and consistent density.
Exporting to over 66 countries, our logistics networks ensure reliable delivery of bulk rolls and custom pipes to major international ports.
Established under the Jinwei Group, which dates back to 1979 as a pioneer of thermal insulation north of the Yangtze River, Kingflex has built on decades of manufacturing history.
Our focus has shifted toward energy conservation, reducing consumption, and high-capacity manufacturing. By combining research with strict quality control, we produce insulation materials designed to meet the performance and durability requirements of industrial operations.
Our standard rubber foam insulation products are manufactured to meet precise structural benchmarks. The NBR/PVC blend provides flexibility, UV protection, and chemical resistance. Below are the design specifications for both sheet rolls and pipe variants:
| Property | Black Rubber Foam Sheet Roll | Black Rubber Foam Pipe |
|---|---|---|
| Base Material | NBR/PVC (Nitrile Butadiene Rubber & Polyvinyl Chloride) | NBR/PVC (Co-extruded formulation) | Standard Thickness | 6mm to 50mm | 9mm to 40mm |
| Inner Diameter (ID) | N/A (Available in rolls of custom width) | 6mm to 114mm |
| Bulk Density | 40 to 55 kg/m³ | 40 to 55 kg/m³ |
| Temperature Range | -40℃ to 105℃ (Extended for Cryogenic systems) | -40℃ to 105℃ |
| Thermal Conductivity | ≤ 0.034 W/(m·k) at 0℃ | ≤ 0.034 W/(m·k) at 0℃ |
| Moisture Resistance (μ) | ≥ 10,000 (Highly resistant) | ≥ 10,000 (Highly resistant) |
Key Advantages: Formulated for uniform cell distribution with a closed-cell structure. It provides compression resilience of over 80%, low moisture absorption, and self-extinguishing flame-retardant properties. Ideal for large HVAC ductwork, clean rooms, and structural wall insulation.
Key Advantages: Extruded using professional pipe-spraying equipment for consistent dimensional tolerances. This insulation pipe minimizes freezing risks, reduces thermal gain/loss on copper and metal piping, and dampens flow noise in public and industrial infrastructure projects.
Industrial insulation needs vary by region and industry sector. Kingflex designs customized solutions to meet these distinct operational requirements:
For office spaces, hospitals, and cleanrooms, our fiber-free NBR/PVC panels prevent air contamination and skin irritation, maintaining high indoor air quality (IAQ) and low VOC emissions.
Designed to insulate steam lines and process pipes. Closed-cell rubber foam helps prevent corrosion under insulation (CUI) by keeping external moisture and chemical vapors away from steel surfaces.
For liquefied natural gas (LNG) terminals and refrigeration plants operating at temperatures below -40℃, our cryogenic line provides structural flexibility to resist thermal shock cracking.
Our quality assurance protocol begins in the R&D testing laboratory. We operate raw material inspection systems, automated blending scales, and temperature-controlled curing chambers. Every production run undergoes verification testing, including density scans, K-value thermal evaluation, and moisture absorption profiling.
This attention to quality control has helped us secure key building and safety certifications. Kingflex insulation systems comply with British Standards (BS 476 Part 6 & 7), CE European Union Directives, REACH, RoHS, UL94 Flammability Ratings, and ASTM testing criteria.
Our certifications are more than marks; they represent our commitment to project safety and performance. They confirm that our products meet flame propagation standards and contain no ozone-depleting substances, ensuring compliance with global environmental regulations.
For international procurement managers, engineers, and distributors, supply chain transparency and consistent quality are critical. Kingflex supports international sourcing workflows by offering technical consultations, customs support, and responsive client communication.
Our dedicated export department coordinates international logistics, ensuring documentation meets local compliance standards. This support has enabled us to partner with mechanical contractors, commercial developers, and industrial distributors across global markets.
Our export division works directly with procurement partners via structured messaging channels to provide project updates, manufacturing details, and logistics tracking.
* Documented communication records show our engagement with engineering firms and distributors regarding custom dimensions and delivery schedules.
To meet the diverse demands of international commercial and infrastructure projects, Kingflex supplies an extended line of specialized insulation options, including elastic insulation tubes and lamination sheet solutions:
