Kingflex
Kingflex
Explore our industrial-grade NBR/PVC elastomeric rubber foam sheets, tubes, and specialized ultra-low temperature solutions.
A Pioneers Combo in Engineering Energy-Saving & High-End Acoustical Systems
Established as a core subsidiary of the renowned Jinwei Group (boasting a legacy that trace back to 1979, which stood as the first thermal insulation manufacturer north of the Yangtze River), Kingflex Insulation Co., Ltd. has expanded into an environmental powerhouse. We integrate high-level chemical synthesis, industrial manufacturing, and global trade operations in the designated capital of green-building materials, Dacheng, China.
In our current landscape, we operate under a pivotal paradigm: energy conservation, sustainable construction, and strict decibel control are not merely regulatory codes but core structural mandates. We provide robust architectural and thermodynamic solutions through consulting, end-to-end design, advanced custom manufacturing, and expert on-site technical direction. This guarantees long-term compliance and structural protection across building envelopes, HVAC distributions, and cryogenic process facilities worldwide.
For over 16 consecutive years, our products have served engineering firms, developers, and distributors in over 66 countries. Our capacity scales to meet large-scale infrastructure deployments and customized OEM specifications.
Analyzing the shift toward NBR/PVC elastomeric foams, environmental certifications, and smart structural interfaces.
In high-specification commercial environments, traditional fiberglass and open-cell foams present substantial maintenance liabilities, including moisture adsorption, microbial colonization, and particulate shedding. Modern acoustic engineering demands multi-functional materials. By modifying the nitrile butadiene rubber and polyvinyl chloride (NBR/PVC) polymer matrix, manufacturers can produce elastomer sheets with high micro-void consistency. This structure achieves a dual effect: the high-density elastomer acts as an acoustic barrier for airborne noise transmission loss, while the elastomeric structure dampens mechanical vibrations (structure-borne noise). This represents a major advancement in building energy optimization and acoustic design.
With the expansion of pharmaceutical laboratories, advanced semiconductor fabs, and strict green-building standards (such as LEED v4.1 and BREEAM), the selection of insulation materials depends heavily on volatile organic compound (VOC) profiles. Modern sound-absorbing insulation must be formulated without halogenated flame retardants, formaldehyde, or heavy metals. Industry-leading manufacturers utilize advanced blowing agents to ensure zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) of less than 5, satisfying international RoHS and REACH regulations.
Mechanical design engineers no longer evaluate thermal insulation and acoustic absorption independently. Pipeline systems in district cooling plants, HVAC setups, and process industries exhibit thermal-acoustic coupling. Condensation formation accelerates CUI (Corrosion Under Insulation), while mechanical fluid turbulent flow generates persistent noise. Standardizing on composite elastomeric insulation solutions, such as Kingflex NBR/PVC sheets combined with self-adhesive backing layers, helps address thermal energy loss, condensation control, and structural noise reduction within a single application process.
Industrial footprint and operational performance data validated across standard applications.
Solving Supply Chain Risks & Quality Variations for Large-scale Contracting
For international procurement officers, global construction firms, and materials distributors, source qualification requires more than comparing unit costs. Global procurement requires a supplier capable of handling custom sizing, supply chain logistics, and third-party certifications.
Kingflex addresses these requirements by operating under a comprehensive quality management system. Our automated manufacturing lines minimize batch variance in density, closed-cell ratio, and flame-retardant distribution. This ensures that the material delivered to site matches the technical data sheets and satisfies building control audits.
OEM and Custom Fabrications: We support custom dimensions, specialized self-adhesive backings, and aluminum foil laminations. This provides tailored protection against physical impacts and UV degradation in outdoor settings.
Targeted insulation systems engineered for harsh operating environments, chemical processes, and structural infrastructure.
Air handling installations require insulation that dampens low-frequency fan noise without shedding fibers into the air supply. Kingflex elastomeric sheeting controls condensation and reduces duct wall vibration, helping maintain quiet operation in cleanrooms and offices.
Extremely low temperatures demand insulation that resists thermal cracking and vapor intrusion. Our NBR/PVC closed-cell matrix prevents moisture migration, protecting industrial pipes from ice formation and structural failures.
High-pressure steam systems, chemical lines, and chiller loops face thermal loss and noise issues. Kingflex rubber foam tubes provide thermal isolation and acoustic dampening, protecting piping runs in plant environments.
Direct laboratory measurements and dimensional baselines for our elastomer systems.
| Parameters | Kingflex Standard Spec |
|---|---|
| Material Matrix | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Available Thickness Range | 6 mm to 50 mm |
| Density Profile | 40 - 55 kg/m³ |
| Operating Service Temperature | -40 ℃ to 105 ℃ |
| Closed-Cell Rate | > 98% uniform cell structure |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0 ℃ |
| Compression Resilience | > 80% recovery under standard load |
* Standard customization options include fiber mesh reinforcement, high-strength self-adhesive paper liners, and structured aluminum foil jacketing for UV exposure protection.
| Parameters | Kingflex Standard Spec |
|---|---|
| Material Matrix | High-performance elastomeric NBR/PVC matrix |
| Wall Thickness Range | 9 mm to 40 mm |
| Internal Diameter (ID) Range | 6 mm to 114 mm |
| Density Profile | 40 - 55 kg/m³ |
| Vapor Permeability (μ) | ≥ 10,000 resistance factor |
| Flame Behavior | Self-extinguishing, limits flame spread |
| Coating Technology | Co-extruded smooth skin layer |
* Seamless sizing allows direct installation over copper and steel pipes, minimizing air gaps that can lead to condensation.
Validated Performance Verified by Global Testing Institutions
Our raw materials and finished products are tested by international laboratories. Kingflex insulation products carry certifications including BS 476, CE, REACH, RoHS, UL94, and ASTM, ensuring compliance with global building codes.
Traceability Matrix: We use an end-to-end traceability protocol for every batch, from raw compound input to finished product rolls. This allows us to track formulation, temperature settings, and QA inspection metrics for any shipped order, providing reliable documentation for industrial audits.
Current development pathways for our thermal and acoustic insulation materials.
Integrating functional carbon nano-structures into the NBR polymer matrix to increase structural strength and vibration dampening across a broader thermal range.
Implementing bio-derived rubber bases and recycled polymer components to reduce carbon footprint while maintaining fire resistance and structural performance.
Developing multi-layered sheets that combine open-cell micro-structures with dense barrier skins to target both airborne transmission loss and structural dampening.
Reviews and communications from international procurement partners and design engineers.
We work closely with project managers and distributors globally. From initial thickness calculations to managing transport logistics, we aim to provide reliable support throughout the project lifecycle.
Our sales team coordinates directly with manufacturing and logistics to ensure delivery dates and packaging requirements are met.
A manufacturing plant relies on the experience of its staff. The Kingflex team includes 8 professional R&D engineers, 6 international sales specialists, and 230 production personnel.
Our engineering team works on formulation development, environmental safety testing, and structural calculations for custom projects. This engineering-focused approach ensures our products remain competitive and compliant with international standards.
Our five automatic assembly lines produce over 600,000 cubic meters annually. This automated process ensures consistent material density, cell structure, and fire performance throughout production.
Kingflex is a designated manufacturer for national energy, power generation, and chemical process projects. Our logistics and production management systems are designed to handle large-scale shipments while meeting project delivery deadlines.
Frequently asked questions regarding our materials, certifications, and project applications.
A1: It is primarily used for insulating HVAC ductwork, commercial air conditioning pipes, building envelopes, industrial process piping, and cooling systems. It prevents heat transfer, controls surface condensation, and dampens mechanical vibrations.
A2: Yes. Our products include flame-retardant additives that yield self-extinguishing properties, satisfying international standards such as BS 476 Parts 6 & 7 (Class 0/Class 1) and UL94.
A3: Rubber foam is a flexible, closed-cell elastomer with high water vapor resistance, making it suitable for HVAC, cooling systems, and acoustics. Rock wool is a fibrous mineral insulation that handles high temperatures, making it suitable for high-temperature process steam pipelines.
A4: Yes. We offer OEM and custom options, allowing variations in thickness, sheet widths, tube inner diameters, and specialized lamination finishes.
A5: Our products are certified under BS 476, CE, REACH, RoHS, UL94, and ASTM standards, confirming their quality and fire safety characteristics.
A6: Yes. Every production batch is coded to track raw material inputs, processing parameters, and quality control test records.
A7: We produce elastomeric foam rolls and sheets in thicknesses ranging from 6 mm to 50 mm.
A8: Under standard operating conditions and proper installation, our rubber foam sheets and tubes offer an expected service life of 10 to 15 years.
Specific product models tailored to acoustic absorption and corrosion protection.
Standard flexible pipeline cover.
With protective exterior skin layer.
Highly flexible rubber compound.
Premium black NBR base.
High performance insulation.
Engineered for HVAC air distribution.
High-density multi-layered system.
Engineered for low-temperature settings.
Withstands thermal contraction.
For low-temperature process lines.
High thermal performance board.
Flexible fiber thermal wrap.
Browse our complete list of rubber foam sheeting, standard tubing, and specialty insulation systems.
