Explore our high-performance thermal insulation tubes, corrosion-resistant elastomeric sheets, and soundproofing structural materials.
In modern multi-story buildings, mechanical noise, impact sounds (footsteps, moving furniture), and structural vibrations represent major components of noise pollution. Managing sound transmission requires a scientific approach targeting both Impact Insulation Class (IIC) and Sound Transmission Class (STC) ratings.
Kingflex's elastomeric closed-cell rubber foam provides high-density sound dampening properties. The unique micro-cellular viscoelastic matrix acts as a mass-spring system, converting acoustic wave energy into minimal heat, effectively deadening vibrations. Consequently, it represents the superior choice for architects, developers, and HVAC engineers looking to achieve compliance with international building codes (e.g., DIN 4109 and Approved Document E).
Built upon over four decades of thermal insulation manufacturing excellence, driving energy-efficiency innovations globally.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Located in Dacheng, China—widely recognized as the green building materials capital—Kingflex operates as an energy-saving, environmentally conscious enterprise concentrating on R&D, advanced manufacturing, and global sales. By keeping energy conservation as our core philosophy, we deliver holistic consulting, structural design guidance, and premium material supplies.
Established under the parent umbrella of the Jinwei Group, Kingflex inherits an illustrious history dating back to 1979. As the pioneering manufacturer of thermal insulation materials north of the Yangtze River, our group has consistently led technological transitions from basic fiberglass and rock wool systems to advanced closed-cell elastomeric polymeric formulations.
Our team consists of 8 professional R&D engineers, 6 international sales specialists, and 230 highly skilled factory technicians. Our shared vision ensures that we deliver first-class, compliant service to all global contractors. We run integrated chemical tests in our proprietary laboratory to customize density, flammability performance, and acoustic absorption spectra.
Examine the mechanical features of Kingflex elastomeric closed-cell rubber foam solutions designed for acoustic and thermal insulation.
| Property / Characteristic | Kingflex Standard Specifications | Testing Methods & Compliance standards |
|---|---|---|
| Base Compounds | Acrylonitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) | ASTM D1667 / ISO 6944 |
| Slab Thickness Range | 6 mm to 50 mm (Rolls & Sheet Slabs) | Direct physical calibration |
| Bore Diameters (Pipe Insulation) | Inner Diameter (ID): 6 mm to 114 mm | Standard industrial piping calibration |
| Standard Density range | 40 kg/m³ to 55 kg/m³ | ASTM D1622 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0 °C | ASTM C518 / ISO 8301 |
| Operating Service Temperature | -40 °C to 105 °C | ASTM C411 |
| Moisture Permeability Resistant Factor | μ ≥ 10,000 (Built-in water vapor barrier) | BS EN 12086 / ASTM E96 |
| Flammability Ratings | Class 0 / Class 1, Self-extinguishing, low smoke index | BS 476 Part 6/7, UL94 V-0, GB 8624 |
| Sound Absorption & Dampening | Excellent structural decoupling; reduces impact noise up to 28 dB | ASTM E492 (IIC testing) / ISO 140-8 |
From central HVAC frameworks to sub-floor soundproofing in multi-family residential complexes.
Installed directly below concrete screeds in high-rise hotels, hospitals, and residential towers to mitigate impact sound (footsteps, dropping objects). Prevents sound waves from transferring through the structural concrete slab into the rooms below.
Combats thermal transfer and sound transmission in dynamic air vents. Eliminates structural resonance and prevents condensation on cold duct walls in high-humidity commercial office buildings.
Ensures energy efficiency and reduces high-frequency fluid noise in chemical plants, oil refineries, and pharmaceutical clean rooms. Protects pipelines from corrosion under insulation (CUI).
Leveraging advanced automation, extensive raw material supplies, and streamlined logistics to guarantee on-time global deliveries.
Operating from Dacheng, China, our smart facility runs continuously to meet global demands. Our automated extrusion and vulcanization systems ensure consistent cell structure, density, and thickness. As a recognized supplier designated by the Ministry of Energy and the Ministry of Chemical Industry, Kingflex manages raw material sourcing to insulate customers from supply shortages and pricing volatility.
Our core product offerings include Black Rubber Foam Insulation Sheets and Pipes.
Material base: High grade NBR/PVC blend.
Thickness availability: 6mm to 50mm slabs.
Physical density range: 40 to 55 kg/m³.
Operational temperature limits: -40℃ to 105℃.
Used to insulate wall cavities, concrete roofs, commercial basements, structural steel frames, and large-scale industrial storage tanks.
Material base: High grade NBR/PVC blend.
Wall thickness range: 9mm to 40mm.
Internal bore sizes (ID): 6mm to 114mm.
Physical density range: 40 to 55 kg/m³.
Used for sound dampening and thermal insulation of dynamic chilled water lines, geothermal pumps, central air conditioning refrigerant loops, and hot water supply runs.
Acoustic performance and green building requirements are continually evolving. Here is how Kingflex is leading the future of insulation technology.
Our research and development team is transitioning from traditional chemical blowing agents to advanced gaseous CO2 and water-based foaming methods. This ensures zero Ozone Depletion Potential (ODP) and negligible Global Warming Potential (GWP), helping project developers earn valuable LEED and BREEAM rating credits.
We are engineering multi-layered, hybrid-density rubber sheets. By laminating standard low-density thermal insulation with high-mass sound barriers, these composites deliver both thermal resistance and impact sound reduction (IIC) in a single, thin floor underlayment.
We are incorporating halogen-free inorganic nano-particle flame retardants into our polymer matrix. This significantly reduces smoke toxicity and density during fire events while maintaining the flexibility and mechanical integrity of the insulation.
Large-scale construction and industrial projects require reliable logistics, traceable products, and consistent quality compliance. Kingflex supports international sourcing managers through:
Our manufacturing and testing processes align with rigorous global building standards.
Kingflex insulation systems undergo rigorous testing to ensure compliance with strict environmental, health, safety, and performance standards worldwide.
These certifications verify that our products are safe for installation in public structures, healthcare facilities, and dense residential projects.
Get answers to common technical, applications, and logistics questions about Kingflex solutions.
Explore our low-temperature elastomeric rolls, colorful tubing, and specialized systems designed for industrial infrastructure.
A closer look at our certified products and shipping processes.
Contact our sales engineers for specific performance data, density adjustments, pricing structures, and shipping schedules.
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