Kingflex
Kingflex
High-performance elastomeric thermal and cryogenic solutions manufactured to conform with rigorous international building and safety codes.
Modern architectural structures and heavy industrial processes require rigid environmental controls. Energy conservation and condensation prevention are paramount in mechanical engineering systems. As a leading Wholesale Isolante Tubi Manufacturer, Kingflex Insulation Co., Ltd. addresses these needs with state-of-the-art closed-cell thermal solutions. Using advanced Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) compound blending processes, our factories output flexible foams designed for high durability and thermal efficiency.
Our solutions prevent thermal energy loss, resist moisture ingress, and block environmental sound waves. The closed-cell micro-structure features a density range of 40 to 55 kg/m³, which limits initial thermal conductivity while maintaining high resistance to water vapor permeability.
Founded under the umbrella of the Jinwei Group (established in 1979 as the pioneering thermal insulation supplier north of the Yangtze River), Kingflex Insulation Co., Ltd. has served the global market for decades. Based in Dacheng, China—a hub for green building materials—our operations combine raw material access, continuous technological research, and scaling efficiency.
Today, our facility serves as a trusted developer and manufacturer of energy-saving solutions. From mechanical engineering consultations to global logistics support, we provide reliable systems designed to meet international engineering and regulatory requirements.
Annual Production Capacity (m³)
Automatic Assembly Lines
Years of Industrial Heritage
Countries Exported Globally
Verified mechanical properties confirming performance metrics under challenging thermal conditions.
| Specification Parameter | Kingflex Standard Tube Performance | Kingflex Standard Sheet Performance |
|---|---|---|
| Base Material Structure | NBR/PVC blend, fully closed-cell (>98%) | NBR/PVC blend, fully closed-cell (>98%) |
| Available Thickness Range | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm | 6mm to 50mm (Customized variations supported) |
| Inner Diameter (ID) Bounds | 6mm up to 114mm | N/A (Roll widths up to 1.5 meters) |
| Material Density Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Service Temperature Threshold | -40℃ to +105℃ (Ultra-Low options available) | -40℃ to +105℃ |
| Thermal Conductivity (0℃) | ≤ 0.034 W/(m·k) | ≤ 0.034 W/(m·k) |
| Water Vapor Permeability (μ) | ≥ 10,000 (Built-in vapor barrier) | ≥ 10,000 (Built-in vapor barrier) |
| Fire Safety Rating Standards | BS 476 Part 7 Class 1 / Part 6 Class 0, UL94 V-0 | BS 476 Class 0, ASTM E84, CE Certified |
Building materials supply chains require balanced capacity, lead time reliability, and cost-to-performance ratio. Kingflex operates 5 large-scale automated assembly lines to ensure production volume stability. We run continuous operations to accommodate large order volumes, helping project managers and distributors maintain consistent stock levels.
Additionally, our geographic location within the Hebei green building materials cluster ensures stable access to raw chemical materials. This proximity reduces domestic transit expenses and speeds up shipping through nearby northern shipping ports. This localized infrastructure supports stable pricing and reliable scheduling, even during shifts in international freight markets.
Automated bulk manufacturing minimizes resource waste and keeps unit costs highly competitive.
Standardized inline inspections verify thickness, density, and cell structure consistency.
Our dedicated R&D department employs 8 professional engineers focusing on materials development and environmental compliance. Kingflex products undergo testing to satisfy strict international standards, ensuring compliance across European, American, and Asian markets.
Our products carry certifications for major international standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM. These safety marks ensure our materials are approved for use in public commercial projects, cleanroom facilities, and high-safety petrochemical plants.
Trusted by contractors, builders, and procurement teams for installations in demanding commercial environments.
Insulated central ventilation systems in high-rise commercial structures.
Condensation control and thermal protection for chilled water loops.
High-durability insulation shielding steam lines and storage tanks.
We work closely with procurement teams worldwide to meet specific project guidelines and performance metrics. Our sales and engineering teams coordinate carefully during production to ensure order accuracy and material consistency.
Our packaging is designed for international transport, protecting the products from compression and moisture during shipment so they arrive ready for installation.
Our NBR/PVC elastomeric formulations are engineered to perform across diverse industrial and commercial fields.
Controls condensation and reduces thermal energy loss in central air conditioning lines, chilled water loops, and refrigeration piping networks.
Provides thermal barrier sheets for floors, walls, and roofs while reducing acoustic transmission through building structures.
Fiber-free design prevents particulate shedding in cleanrooms, pharmaceutical plants, and high-tech electronics manufacturing facilities.
Designed to remain flexible at very low temperatures, preventing structural cracking in LNG transport and liquid gas installations.
Dampens structure-borne vibration and mechanical noise within ventilation systems, generator rooms, and vehicle chassis.
The closed-cell structure blocks external moisture from contacting pipe surfaces, minimizing the risk of corrosion under insulation (CUI).
A look into our production lines, testing laboratories, and certified shipping processes.
Technical details regarding our manufacturing capabilities, standards compliance, and order processes.
Elastomeric rubber foam insulation is widely used for HVAC ducting, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. The closed-cell structure helps control condensation on cold water piping systems.
Yes, our rubber foam insulation is formulated with flame retardants. It is tested to meet fire safety standards, including BS 476 (Class 0 and Class 1) and UL94 V-0 flame-spread ratings, making it suitable for high-occupancy commercial and industrial projects.
Rubber foam features a flexible, closed-cell structure that resists moisture penetration without requiring an external vapor barrier. This makes it highly effective for HVAC systems and cold pipelines. Rock wool is a fibrous material with high temperature resistance, making it suitable for high-heat industrial steam lines.
Yes, we provide OEM services. We can customize wall thicknesses, inner diameters, colors, packaging designs, and add self-adhesive backings or protective aluminum coatings to meet specific project needs.
Our materials are certified for compliance with major international standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This documentation supports project approvals in regulated markets globally.
Yes, our quality management system assigns batch codes to all shipments. This tracking system allows us to trace materials back through our manufacturing lines and chemical inputs for quality assurance.
We produce rubber foam sheets and rolls in thicknesses ranging from 6mm to 50mm, allowing developers to choose the appropriate thickness to meet their specific thermal requirements.
When installed correctly and used within recommended operating conditions, our elastomeric rubber foam insulation has a service life of approximately 10 to 15 years.
Explore our specialized closed-cell tubes, foil-laminated rolls, and high-density acoustic barriers.
Technical parameters for Black Rubber Foam Sheet Rolls and Insulation Pipes.
Designed for large-diameter pipelines, air ducts, rectangular vessels, and architectural flat surfaces requiring high thermal resistance.
Pre-formed cylindrical tubes sized for standard copper, steel, and plastic HVAC/R piping systems.
Specialized formulations designed for specific chemical resistance, cryogenic flexibility, and mineral-wool configurations.
Global building regulations increasingly focus on energy conservation, fire safety, and low indoor pollutant emissions. These parameters guide the product development at our Dacheng manufacturing site.
We work to optimize raw material usage, reduce processing energy, and formulate products that meet low-VOC requirements. This helps our partners meet environmental standards (such as LEED or BREEAM) in modern building construction.