Kingflex
High-performance elastomeric and rock wool solutions engineered for HVAC systems, low-temperature pipelines, and industrial thermal containment.
Years of Legacy (Since 1979)
Annual Capacity (m³)
Large Automatic Assembly Lines
Global Destination Countries
Worldwide HVAC industries are shifting rapidly toward high-efficiency materials that minimize thermal loss and maintain long-term integrity under demanding atmospheric conditions. Self-adhesive foil and foam duct wrap represent a pinnacle innovation in this arena, merging premium elastomeric cellular structures with reinforced aluminum foil facing and high-tack pressure-sensitive adhesive backings.
By integrating a vapor barrier, structural damping foam, and localized reflection cladding, these systems dramatically reduce convective and radiative heat transfer. Key global enterprises in the pharmaceutical, chemical, data center, and high-rise commercial sectors specify these parameters to meet rigorous energy efficiency benchmarks like ASHRAE 90.1 and European BS EN 12086 standards.
Kingflex Insulation Co., Ltd. addresses this global market requirement by manufacturing high-density, closed-cell NBR/PVC elastomeric foams that deliver superior resistance to moisture ingress and low thermal conductivity. With an advanced manufacturing hub in Dacheng, China, our company ensures supply chain resilience for projects across North America, Europe, the Middle East, and Asia Pacific.
Why global HVAC and industrial construction firms choose Kingflex for high-volume procurement.
Located in Dacheng, China—the globally recognized capital of green-building materials—our factory leverages a mature industrial cluster. This localized vertical integration guarantees rapid sourcing of raw chemical feeds (NBR, PVC, and specialized cross-linking agents), optimizing logistics, lowering energy tariffs, and maintaining direct access to key shipping ports.
Operating five state-of-the-art automated assembly lines, Kingflex achieves an annual production capacity exceeding 600,000 cubic meters. Automation guarantees uniform foaming, consistent cellular density, precision thickness profiling (from 6mm to 50mm), and flawless lamination of reinforcement foil and high-performance adhesives.
Every production batch undergoes meticulous testing for thermal conductivity, water vapor transmission, dimensional stability, and flame retardancy. Designated as a certified provider by the Ministry of Energy and Ministry of Chemical Industry, our products carry complete material traceability to support project auditing.
Kingflex Standard Specifications for Rubber Foam Sheet Rolls and Pipes.
| Property | Specification Detail |
|---|---|
| Material | NBR / PVC Elastomeric Compound Blend |
| Thickness Range | 6mm - 50mm (Customizable options available) |
| Core Density | 40 - 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ (System-dependent application limits) |
| Vapor Permeability | Closed-cell rate >98%, low moisture absorption |
| Property | Specification Detail |
|---|---|
| Material | NBR / PVC Elastomeric Compound Blend |
| Thickness Range | 9mm - 40mm |
| Inner Diameter (ID) | 6mm - 114mm |
| Core Density | 40 - 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ (Cryogenic applications reach -200℃) |
Established by the Jinwei Group, which possesses a rich history spanning over 40 years, Kingflex was founded in 1979. We were proud to establish ourselves as the pioneer manufacturer of thermal insulation materials north of the Yangtze River. Driven by the philosophy of energy saving and consumption reduction, our team combines historical manufacturing expertise with modern polymer research.
Our operation integrates consultation, custom research and development, quality-controlled mass production, site installation guidance, and dedicated post-sale technical services. The Kingflex team comprises 8 professional research and development engineers, 6 experienced international sales consultants, and 230 skilled production personnel.
Our corporate responsibility is to supply global partners with comprehensive, integrated insulation systems that lower the carbon footprint of building services, chemical processes, and HVAC systems.
Meeting building codes and safety regulations across five continents.
Building safety is non-negotiable. Kingflex self-adhesive foil and foam wraps are manufactured to exceed global standard regulations. Our thermal elastomeric insulation materials have successfully completed testing and secured certifications under major international authorities:
Every roll of Kingflex insulation is shipped with traceable production batch numbers. This ensures structural engineers and fire safety inspectors can easily verify material properties on-site.
Where Kingflex Self Adhesive Foil and Foam wraps operate globally.
Excellent thermal insulation for ducts, air handling unit (AHU) casings, and large-diameter supply pipes. The self-adhesive foil surface functions as a continuous vapor barrier, preventing condensation and reducing system energy loss in commercial offices, hotels, shopping malls, and healthcare facilities.
Specially developed to insulate low-temperature systems, cryogenic gas terminals, and cold-chain pipelines operating down to -200 °C. The multi-layered closed-cell structure prevents moisture ingress and blocks thermal heat transfer in volatile industrial settings.
Our open-cell acoustic panels and high-density elastomeric boards control industrial noise and reduce mechanical vibrations. This makes them ideal for lining ventilation shafts, mechanical plant rooms, generator casings, and industrial equipment enclosures.
Delivering high-value insulation systems to project engineers and contractors worldwide.
Kingflex insulation products are specified by structural engineers and HVAC contractors globally. From commercial high-rises to petrochemical complexes and municipal infrastructure, our materials deliver consistent thermal performance and fire safety. The images showcase on-site installations and quality audits demonstrating Kingflex's engineering capability.
We work closely with global buyers, technical teams, and inspectors to ensure every shipment meets exact specifications. Below are verified records of product evaluations, custom thickness requests, and feedback from procurement managers.
We assist procurement teams and estimators in optimizing material costs and delivery timelines.
To request a tailored quote for Kingflex self-adhesive foil and foam duct wrap, please provide the following details:
Our engineering team offers comprehensive support, including custom tool mock-ups, compliance validation, logistics arrangement, and detailed installation documentation. Requesting quotes directly from our manufacturing facility cuts out middleman markups, ensuring competitive pricing for your commercial HVAC or industrial project.
Technical explanations and performance specs to guide your project design.
A1: Elastomeric rubber foam is a flexible, closed-cell material designed for HVAC duct wrap, air conditioning piping, refrigeration lines, acoustic panels, and cold-water systems. Its high vapor resistance and low thermal conductivity prevent condensation, reduce thermal transmission, and dampen vibration noise.
A2: Yes. Kingflex rubber foam insulation meets BS 476 (Class 0 and Class 1), CE, and UL 94 standards for fire retardancy. The material is self-extinguishing and does not propagate fire, making it suitable for high-density commercial and industrial installations.
A3: Rubber foam is highly flexible, features a closed-cell structure that prevents moisture absorption, and is ideal for HVAC and refrigeration systems. Rock wool insulation is non-combustible and has a high melting point, making it suitable for high-temperature industrial pipelines, steam lines, and structural fire protection.
A4: Yes. We offer comprehensive OEM and ODM support. We customize thickness, outer cladding (such as embossed aluminum foil or protective glass-fiber coatings), sheet width, pipe inner diameters, and self-adhesive compound backings to meet specific project needs.
A5: Our products are tested and certified under CE, BS 476, REACH, RoHS, UL 94, and ASTM. This guarantees compliance with global environmental, quality, and fire safety standards.
A6: Yes. Every production batch of Kingflex insulation sheets, rolls, and pipes includes complete batch tracking records. This transparency allows for thorough material auditing and field verification on municipal or corporate jobsites.
A7: We manufacture rubber foam insulation rolls in thicknesses ranging from 6mm to 50mm, providing solutions for standard HVAC systems as well as heavy industrial cold preservation.
A8: When correctly specified, installed, and paired with the appropriate weather-proof cladding, Kingflex rubber-plastic materials provide a service life of 10 to 15 years. This durability is maintained even in challenging environments like high-humidity climates or industrial areas.
Explore our specialized thermal solutions for deep cryogenic environments, low-temperature systems, and heavy-duty industrial pipelines.
