Kingflex
Kingflex
In modern industrial and commercial infrastructure design, thermal efficiency, thermal control, and moisture management have become paramount. Rubber foam insulation sheet rolls, also known as elastomeric foam, are cellular polymer matrices composed mainly of Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC). This chemical structure yields a flexible, resilient, closed-cell material that offers a formidable defense against heat transfer and water vapor intrusion.
Kingflex Insulation Co., Ltd. leads the engineering of these advanced insulation materials, fabricating standard-setting sheet rolls, tubes, and specialized systems. By utilizing state-of-the-art continuous vulcanization technology, our products ensure constant thermal resistance ($K$-value or $\lambda$) and high water vapor resistance ($\mu$-value), rendering them critical components in HVAC systems, process piping, cryogenic installations, and green buildings worldwide.
Traditional fibrous insulation materials, such as rock wool or fiberglass, rely on trapped air within their fibers. While highly effective when dry, these materials exhibit exponential increases in thermal conductivity upon exposure to ambient humidity. Moisture absorption of just 1% by volume can increase thermal conductivity by up to 85%. In contrast, elastomeric rubber foam exhibits a non-polar structure that naturally repels water molecules, requiring no separate vapor barrier jacket for standard applications.
Maintains stable $\lambda \le 0.034$ W/m·K at 0°C. Minimizes energy loss in cooling and heating ducts, significantly lowering building carbon footprints.
Water vapor diffusion resistance factor ($\mu$) $\ge 10,000$. Prevents interstitial condensation, mold development, and liquid condensation drips.
Class 0 certified under British Standard BS 476 (Parts 6 & 7). Self-extinguishing material designed to satisfy stringent municipal fire safety codes.
Strategically situated in Dacheng, China—the undisputed capital of green building materials and thermal insulation manufacturing—Kingflex Insulation Co., Ltd. functions as a massive production powerhouse. Our factory layout houses five ultra-modern, high-speed automated extrusion and expansion assembly lines. This state-of-the-art configuration facilitates an annual output capacity exceeding 600,000 cubic meters of premium-grade elastomeric insulation materials.
By optimizing downstream raw material purchasing (NBR/PVC base monomers, foaming agent packages, and flame-retardant synergists) and integrating advanced continuous vulcanization, Kingflex maintains tight tolerances on density, cell distribution, and mechanical shear strength. This centralized manufacturing model translates into significant economies of scale, allowing us to publish competitive wholesale pricelists without compromising standard compliance.
Specifiers, architects, and quantity surveyors require precise mathematical metrics to design robust insulation systems. Rubber foam insulation rolls vary significantly based on density, thickness, and specialized facing options. Refer to the table below for the fundamental parameters of Kingflex standard NBR/PVC elastomer sheet rolls and pipe sections.
| Performance Parameter | Rubber Foam Sheet Roll | Rubber Foam Pipe | Test Standard / Reference |
|---|---|---|---|
| Base Material Matrix | Premium NBR/PVC Blend | Premium NBR/PVC Blend | ASTM C534 Type II |
| Standard Thickness Range | 6mm to 50mm | 9mm to 40mm | EN 13467 / ASTM C534 |
| Inner Diameter (ID) | N/A (Flat Roll) | 6mm to 114mm | Fits Copper & Steel Tubing |
| Density Profile | 40 - 55 kg/m³ | 40 - 55 kg/m³ | ASTM D1622 / EN 1602 |
| Service Temperature Limit | -40℃ to 105℃ | -40℃ to 105℃ | ASTM C411 / EN 14706 |
| Thermal Conductivity ($\lambda$) | $\le 0.034$ W/m·K at 0℃ | $\le 0.034$ W/m·K at 0℃ | ASTM C518 / ISO 8301 |
| Moisture Diffusion Factor ($\mu$) | $\ge 10,000$ | $\ge 10,000$ | BS EN 12086 / DIN 52615 |
| Fire Reaction Classification | Class 0 / Class 1 / B-s3, d0 | Class 0 / Class 1 / B-s3, d0 | BS 476 Part 6 & 7 / EN 13501-1 |
Designed for large flat surfaces, square ductwork, HVAC plenums, and large-diameter tanks. Can be ordered in plain form, with fiber-reinforced self-adhesive backings, or cladded with high-tensile strength aluminum foil shielding for extreme environmental durability.
Primary Mechanical Advantages: Even foaming distribution, structural resilience (compression deflection recovery exceeding 80%), and high resistance to vibration and physical tearing during installation.
Specifically engineered for linear copper, carbon steel, and stainless steel pipe runs. The high elasticity allows the tube to slip easily over complex pipe elbows, fittings, and flanges. Essential for chilled water pipes, split-system refrigerant tubing, and hot water service lines.
Primary Performance Benefits: Uniform inner diameter and consistent thickness prevent thin spots, significantly lowering the risk of freezing, heat gain, or sweating on cold lines.
Corporate procurement strategies in the modern building and industrial sectors have shifted. Procurement teams no longer evaluate products solely on unit price. Global supply chains face rising shipping costs, shifting domestic building standards, and carbon-reduction mandates. When sourcing rubber foam sheet rolls, global entities focus on three critical dimensions:
Green building rating programs like LEED, BREEAM, and DGNB award points for materials that emit minimal Volatile Organic Compounds (VOCs) and contain no chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs). Kingflex insulation is formulated without halogenated blowing agents, ensuring minimal global warming potential (GWP) and zero ozone depletion potential (ODP).
While the initial purchase cost of raw insulation is crucial, installation labor and product longevity represent the bulk of life-cycle costs. Purchasing low-density, poor-performing foam leads to sagging, vapor barrier tearing, and eventual pipe sweat, causing structural damage. Specifying Kingflex high-density, high-$\mu$ rolls prevents CUI and ensures consistent thermal barrier values for over a decade, dramatically driving down operations maintenance costs.
Industrial projects operate on rigid timelines. Delaying the installation of insulation halts subsequent pipeline commissioning. Working directly with a manufacturer possessing an annual capacity of 600,000 cubic meters ensures that large-volume requirements are fulfilled predictably. Kingflex also supports OEM sizing, custom continuous roll lengths, factory-applied adhesive liners, and diverse protective claddings to streamline job-site labor.
Different geopolitical markets enforce varying fire, health, and environmental codes. A single product cannot serve global infrastructure projects without robust testing credentials. Kingflex products undergo verification testing by internationally accredited labs to obtain critical compliance certs, allowing seamless integration in diverse regions:
BS 476 Parts 6 & 7 Class 0 classification. Regulates flame spread index and limits heat release rates during combustion, ensuring compliance with UK and Middle East building codes.
CE Marking and EN 13501-1 fire standard compliance. Free of hazardous components, satisfying REACH and RoHS requirements for commercial structures.
Tested under ASTM C534, E84 (25/50 flame and smoke index limits), and UL94 flammability ratings. Suitable for plenum installations in commercial buildings.
The versatility of closed-cell elastomeric rubber foam allows it to function in diverse environments. Depending on mechanical requirements, moisture levels, and temperature ranges, Kingflex insulation is typically deployed in the following sectors:
Condensation on HVAC metal duct surfaces is the leading cause of structural rot and mold inside ceiling cavities. Applying self-adhesive rubber foam insulation sheet rolls directly to rectangular or circular ducts forms a continuous barrier against ambient moisture, while enhancing thermal performance.
In low-temperature food processing, chemical production, and liquid nitrogen handling, insulating pipework must prevent moisture migration. Kingflex low-temperature cryogenic systems maintain flexibility down to sub-zero temperatures, resisting structural cracking and vapor transmission.
Fluids moving under high pressure through industrial pipe networks generate substantial mechanical vibration and noise. The elastic, high-density matrix of our NBR/PVC blend absorbs sound waves, serving as a structural noise dampener in engine rooms and production areas.
Kingflex Insulation Co., Ltd. represents a professional manufacturing and trading combo for thermal insulation products. Located in Dacheng, China—the capital of green-building materials—we operate as an energy-saving, environmentally friendly enterprise focusing on continuous research, production, and sales. We take energy conservation and consumption reduction as core principles, offering system solutions through expert consulting, in-house R&D, factory production, installation support, and responsive post-sale service.
Established under the Jinwei Group (also known as Kingway Group), which has a heritage spanning over 40 years, our roots date back to 1979. Jinwei Group was the pioneer manufacturer of thermal insulation materials north of the Yangtze River. Decades of research and production expertise are embedded in our current manufacturing operations.
At Kingflex, our people are our greatest asset. Our R&D department features 8 professional chemical and mechanical engineers who continuous refine foam formulations and process controls. They are supported by 6 international sales consultants who coordinate global logistics, and 230 skilled production technicians who ensure our five assembly lines run around the clock to meet delivery deadlines.
We work collaboratively with a shared vision: to deliver consistently first-class service and high-performing thermal insulation barriers for our clients across the construction, petrochemical, power generation, and aerospace sectors.
Over the last 16 years, Kingflex has successfully exported to 66 foreign countries. Our customers are the foundation of our growth, and their feedback guides our factory processes. The screenshot logs display typical client feedback, confirming the quality of our shipping schedules, dimensional accuracy, and density parameters.
Standard architectural designs require specific materials depending on project location. We manufacture specialized variants of elastomeric rubber foam to meet these technical requirements:
In addition to our primary sheet and tube lines, Kingflex manufactures rock wool systems and specialized cryogenic buffers. Browse our specialty product variants below:
For project-specific technical specifications, submittal sheets, or to request a volume-based FOB/CIF pricelist quote, contact the Kingflex International Engineering Division today.
