Kingflex
Explore our core selection of commercial and industrial thermal insulation products manufactured in our state-of-the-art facilities.
Kingflex Insulation Co., Ltd. represents a premiere manufacturing and trading conglomerate dedicated to high-end thermal insulation products. Our cutting-edge research, development, and industrial production facilities are strategically located in Dacheng, China—a region internationally recognized as the capital of green building materials. Operating with a relentless commitment to ecological preservation and resource conservation, Kingflex develops energy-saving solutions that serve the entire lifecycle of industrial and residential projects. Our portfolio ranges from preliminary energy audits and design consultations to customized product fabrication, global logistics coordination, installation guidance, and lifetime post-sales support.
Established under the parentage of the Kingway Group (formerly Jinwei Group), which boasts a rich heritage dating back to 1979, Kingflex has built upon over 40 years of pioneering technical expertise. As the first thermal insulation manufacturer established north of the Yangtze River, we have spearheaded the technological roadmap of energy conservation materials in China and expanded our reach to deliver advanced insulation solutions worldwide.
Discover the physical and mechanical properties that position Kingflex elastomeric systems at the pinnacle of efficiency and compliance.
Engineered using premium Nitrile-Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) blends, our manufacturing processes result in a closed-cell configuration exceeding 98%. This structure locks out water vapor migration, preserving a constant low thermal conductivity value throughout the system's operational lifespan.
We synthesize Class 0 and Class 1 high-end flame retardants directly into our elastomeric polymer matrix. These formulations meet strict international standards, ensuring self-extinguishing properties, low smoke emission densities, and minimal toxic gas production during high-heat scenarios.
With an average thermal conductivity (λ) of ≤ 0.034 W/m·K at 0°C, Kingflex products limit heat flux transfer. This maintains optimal operating temperatures, minimizes industrial greenhouse emissions, and eliminates condensation risks on localized cold piping systems.
The table below highlights the standard physical properties of our flagship elastomeric lines. Custom dimensions, thickness profiles, and pre-applied self-adhesive coatings are available upon order.
| Property | NBR/PVC Elastomeric Foam Tubing | NBR/PVC Elastomeric Foam Sheets | Test Reference |
|---|---|---|---|
| Thickness Range | 6mm - 40mm | 6mm - 50mm | ASTM C209 |
| Internal Diameter (ID) | 6mm - 114mm | N/A (Roll / Board configuration) | Standard Piping Dimensions |
| Apparent Density | 40 - 55 kg/m³ | 40 - 55 kg/m³ | GB/T 6343 |
| Service Temperature Range | -40°C to +105°C | -40°C to +105°C | ASTM C411 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.034 W/(m·K) at 0°C | ASTM C177 / C518 |
| Moisture Resistance Factor (μ) | ≥ 10,000 | ≥ 10,000 | BS EN 12086 |
| Fire Safety Rating | Class 0 / Class 1 / B1 | Class 0 / Class 1 / B1 | BS 476 Part 7 / UL 94 |
| Elastic Resilience | Compression recovery > 80% | Compression recovery > 80% | ASTM D1667 |
Our commitment to thermal engineering is backed by our dedicated Research & Development division. Kingflex employs a highly specialized workforce, including 8 expert R&D engineers, 6 professional international trade consultants, and over 230 trained production operators. Our in-house research laboratory is equipped with precision testing apparatus, enabling us to conduct real-time evaluations of flame-spread indexes, thermal expansion coefficients, ozone degradation resistance, and microscopic bubble distribution.
Through continuous material science optimization, we develop custom configurations designed to withstand extreme cold environments. This includes low-temperature cryogenic pipelines and heavy-duty steam transport infrastructure, providing reliable energy-saving solutions across all applications.
We work directly with structural architects, project engineers, and mechanical procurement offices to offer bespoke, custom-tailored solutions. This includes modifying density levels, developing custom internal diameters, and engineering pre-split tube options for rapid field installation.
Our manufacturing facilities operate under strict quality management frameworks, verified by leading global compliance organizations.
Every batch of Kingflex elastomeric rubber foam and rock wool insulation undergoes rigorous, multi-point quality assurance testing before leaving our loading docks. Our products hold leading international safety and quality certifications, including BS 476, CE, REACH, RoHS, UL94, and ASTM standards.
To support major public and industrial tenders, Kingflex maintains a robust batch traceability system. From raw NBR monomer formulation to the final extrusion and curing phases, every step is logged and traceable back to the production crew, raw material suppliers, and environmental metrics on the factory floor.
Our manufacturing campus features 5 automated, high-output assembly lines capable of running continuous production cycles. This allows Kingflex to maintain an annual capacity exceeding 600,000 cubic meters of finished insulation material.
This massive manufacturing footprint allows us to support large-scale infrastructure projects while keeping lead times short. Our production scale has earned us designated supplier status with major public utility groups, including China's Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, as well as energy providers throughout Southeast Asia, the Middle East, Europe, and South America.
Providing specialized thermal protection, acoustic dampening, and corrosion-prevention solutions for challenging industrial environments.
Condensation on chilled water pipes can lead to water damage, structural mold, and reduced thermal efficiency. Our NBR/PVC elastomeric insulation prevents pipe sweating on copper, steel, and plastic lines, ensuring long-term HVAC performance in commercial and residential properties.
For ultra-low temperature environments down to -40°C, such as liquefied gas pipelines, food processing, and refrigeration, Kingflex cryogenic elastomeric foam maintains its flexibility and structural integrity. This prevents thermal shock, keeps piping systems dry, and reduces energy loss.
Designed with a specialized open-cell core structure, our acoustic panels and sheet rolls absorb airborne noise and isolate structural vibration. This makes them ideal for mechanical rooms, duct linings, and noisy industrial workspaces.
Every product is optimized for easy installation, high thermal efficiency, and long-term durability in challenging field conditions.
NBR/PVC sheet rolls, 6mm-50mm thick, density 40-55kg/m³, temperature range -40℃ to 105℃.
NBR/PVC pipes, 9mm-40mm thick, ID 6mm-114mm, density 40-55kg/m³.
Features an even, 98% closed-cell structure for reliable condensation protection.
Designed for rapid installation on elbows, tees, and valves to speed up work on-site.
Approved and specified for major infrastructure projects worldwide, supported by reliable customer service.
Our international support team provides clear, prompt communication to streamline order processing, technical verification, and logistics. Our client communication logs show how we resolve technical inquiries from engineering firms around the world.
Get answers to common technical, installation, and procurement questions about our insulation systems.
Browse our complete list of industrial and commercial insulation products, designed for high thermal performance and durability.
