Explore our core industrial products engineered to control noise transmission, prevent condensation, and withstand extreme thermal thresholds.
In modern industrial applications, managing thermal efficiency and acoustic pollution are critical. Kingflex Insulation Co., Ltd. stands at the forefront of this technology. We are a specialized manufacturing and trading combo, integrating research and development, smart manufacturing, and global sales. Our primary production base is located in Dacheng, China—the globally recognized capital of eco-friendly building materials.
By centering our operations on energy-saving technologies, Kingflex provides advanced solutions for acoustic dampening, cold conservation, and thermal insulation. We assist project engineers, contractors, and global buyers from initial technical consultation to installation guidance and long-term post-sale warranty support.
Founded under the umbrella of the prestigious Jinwei Group (established in 1979), Kingflex inherits decades of expertise as the premier thermal insulation material manufacturer north of the Yangtze River.
Annual Production Capacity (m³)
Automatic Assembly Lines
Exporting Countries Globally
Dedicated R&D Engineers
Our workforce forms a collaborative engine of technical excellence. With 8 specialized research engineers, 6 international customer support executives, and a skilled workforce of 230 operators, we provide high production consistency. Our 5 automated lines are designated as trusted resources by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry in China.
Whether suppressing structure-borne noise in mechanical rooms or securing cryogenic systems against moisture, we formulate rubber foam structures tailored to our clients' precise environmental specifications.
Why leading global EPC contractors, HVAC engineers, and industrial distributors source their materials from Kingflex's Chinese production facilities.
By leveraging Dacheng's localized chemical supply chain, Kingflex optimizes raw material procurement. The consolidation of specialized PVC, NBR, and foaming agents reduces logistics costs, passing substantial margins down to wholesale buyers.
Our automated production facilities feature continuously monitored heating tunnels and precise vulcanization zones. This keeps batch-to-batch variance in cell size below 3%, maintaining consistent thermal conductivity ($k$-value) and acoustic performance.
Our products comply with international certification systems, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This guarantees smooth customs processing and hassle-free building sign-offs worldwide.
The industrial landscape is pivoting toward sustainable, low-carbon materials and smart manufacturing. Urbanization and strict noise ordinances require buildings to incorporate high-performance acoustic materials. Simultaneously, modern mechanical systems require composite structures that combine fire resistance, vapor barriers, and sound deadening into a single layer.
Additionally, the expansion of green building protocols (such as LEED and WELL standards) has increased the demand for insulation materials that emit zero VOCs and are free from CFCs, HCFCs, or formaldehyde. Kingflex is leading this shift by developing bio-based elastomeric foams and optimizing our chemical processing to lower global warming potential (GWP) across our supply chain.
Below are the standardized material specifications for Kingflex NBR/PVC elastomeric rubber foam sheets and pipeline systems.
Our elastomeric sheet rolls are engineered for large-surface acoustic absorption, mechanical casing wraps, and large-diameter piping systems.
| Parameters | Value / Specifications |
|---|---|
| Material Base | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) Blend |
| Thickness Range | 6mm to 50mm |
| Density Range | 40 to 55 kg/m³ |
| Service Temperature Range | -40℃ to +105℃ |
| Closed-Cell Rate | ≥ 98% |
| Compression Resilience | ≥ 80% |
Designed for immediate installation over copper, steel, and synthetic piping networks, providing dynamic condensation control.
| Parameters | Value / Specifications |
|---|---|
| Material Base | NBR/PVC Closed-Cell Elastomer |
| Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) Range | 6mm to 114mm |
| Density Range | 40 to 55 kg/m³ |
| Water Vapor Permeability | High Resistance Index (μ ≥ 10,000) |
| Flammability Rating | Class 0 / Class 1 (BS 476 Part 6/7) |
How Kingflex products perform across diverse, challenging environments—from urban commercial facilities to extreme heavy industrial plants.
Installed inside or outside HVAC sheet metal systems, Kingflex elastomeric liners deaden mechanical rumble and fan noise while keeping thermal transfer low to prevent condensation dripping.
Protects high-temperature steam lines and chemical processes from heat loss and corrosion under insulation (CUI) while reducing structural vibration in processing facilities.
Specially developed to resist thermal shock down to -200°C. Prevents moisture ingress in liquefied natural gas (LNG) piping, cryogenic facilities, and cold storage storage complexes.
Kingflex materials are built to meet the fire safety and chemical emission guidelines required by international regulatory bodies. Our products carry verified certifications, reflecting our technical responsibility to our clients.
We work closely with global third-party laboratories to continuously audit our quality management workflows. This guarantees that every order—whether destined for Europe, the Americas, or the Middle East—meets standard mechanical properties and environmental profiles.
A look at customer feedback and project integration milestones that validate the performance of Kingflex materials globally.
Our solutions are installed across multiple international projects, providing long-term thermal integrity and sound control.
In-depth responses to critical physical properties, specification standards, and implementation challenges for global engineering projects.
It is primarily used for insulating HVAC duct systems, air conditioning pipes, building thermal envelopes, industrial pipelines, cold storage facilities, and mechanical components. Its high resistance to moisture and reliable sound attenuation make it ideal for both thermal and acoustic applications.
Yes, all Kingflex elastomeric materials are engineered with built-in flame retardants. They meet international fire safety regulations, including BS 476 Part 6 & 7 Class 0/Class 1 and UL94 flammability ratings. This makes them suitable for commercial developments and complex industrial projects.
Rubber foam is a flexible, closed-cell material that provides excellent moisture resistance and vapor barrier performance. This makes it ideal for preventing condensation in HVAC systems and low-temperature applications. Rock wool, on the other hand, is a fibrous material with high-temperature resistance and fire protection, making it more suitable for high-heat industrial applications.
Yes, we offer comprehensive OEM and ODM support. We can customize density, wall thickness, inner diameter, color variations, and surface finishes (such as self-adhesive backings or protective aluminum cladding) to meet specific project needs.
Our products comply with standard testing protocols. Our materials are fully certified under BS 476, CE, REACH, RoHS, UL94, and ASTM. This guarantees compliance with construction standards and mechanical requirements around the world.
Yes, Kingflex maintains an active quality management system where every batch is assigned a unique batch code. This allows us to trace raw materials, production parameters, and quality control tests to guarantee consistent quality.
Our continuous automated lines produce sheet thicknesses from 6mm up to 50mm. This wide range of options allows engineers to select the optimal thickness to meet thermal and acoustic specifications for their projects.
When installed according to professional guidelines, Kingflex rubber foam insulation has a standard operating life of 10 to 15 years in typical environmental conditions. Regular maintenance checks can help maximize the lifespan of the insulation.
The closed-cell configuration features tiny, independent air cells within a dense elastomer matrix. This structure works by converting acoustic pressure waves into heat energy as they pass through the material, which reduces sound transmission and helps damp mechanical vibrations.
Yes. The high density, moisture resistance, and salt-spray durability of our NBR/PVC compounds make them well-suited for marine and offshore installations. They are commonly used to insulate chilled water lines and air ducts on ships and offshore platforms.
Complete your design with our secondary range of specialized thermal barrier tubing, sheet products, and cryogenic system components.
Kingflex
