Kingflex
Explore our top-tier NBR/PVC elastomeric rubber foam materials, designed for excellent thermal efficiency and moisture resistance.
In today's highly dynamic industrial environment, managing energy conservation and preventing thermal bridging are critical operational directives. Kingflex Insulation Co., Ltd. stands at the forefront of this movement. As a professional manufacturing and trading combo, we integrate the research, development, and sales of high-tier thermal insulation systems.
Headquartered in Dacheng, China—widely recognized as the premier manufacturing capital for green building materials—our mission centers on energy saving, low thermal conductivity, and structural longevity. We design comprehensive insulation configurations spanning installation guidelines, specialized production, and long-term diagnostic tracking to elevate building standards globally.
"Kingflex is established by the Jinwei Group, which possesses a rich history of over 40 years. Founded in 1979, Jinwei Group was the pioneer manufacturer of thermal insulation materials north of the Yangtze River, paving the way for our modern advancements."
Driving supply chain resilience with state-of-the-art automation and highly trained scientific specialists.
A strong workforce is essential for maintaining product quality at scale. Our operational model relies on skilled engineering and strict QA/QC testing.
The Kingflex team comprises 8 dedicated research and development engineers, 6 experienced international sales consultants, and 230 specialized production professionals. This structure enables us to provide optimized solutions for complex building designs and industrial process lines globally.
Our facility serves as an authorized partner for the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, reflecting our adherence to strict regulatory standards.
How environmental standards, industrial updates, and efficiency targets are shaping the procurement of elastomeric foam.
Modern building regulations demand lower thermal transmittance (U-value). Advanced NBR/PVC closed-cell foams reduce heat gain in HVAC chilled water loops, mitigating refrigeration system load and decreasing carbon output.
Cryogenic liquid processing (such as LNG and liquid oxygen) requires materials that remain flexible without cracking at sub-zero temperatures. Custom elastomeric foam formulas prevent structural damage from thermal cycling.
With complex fire codes like BS 476 Part 7 (Class 1) and UL 94 V-0, installers require self-extinguishing insulation systems that minimize smoke density and prevent flame spread in high-occupancy structures.
Our facility utilizes smart manufacturing principles. The implementation of 5 continuous automated assembly lines ensures consistent density, cellular structure, and wall thickness. This automation reduces production variance compared to manual methods.
Comprehensive performance details for our NBR/PVC elastomeric rubber foam sheets and pipe systems.
Designed for large-diameter pipes, duct systems, and flat surfaces, this sheet roll provides a reliable vapor barrier to prevent condensation in commercial and industrial settings.
| Property | Standard Value / Details |
|---|---|
| Material | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) Elastomeric Blend |
| Thickness Range | 6mm to 50mm |
| Density | 40 - 55 kg/m³ |
| Service Temperature Range | -40℃ to +105℃ |
| Closed-Cell Rate | > 98% |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0℃ |
| Moisture Resistance Factor (μ) | ≥ 10,000 |
Pre-formed pipe profiles designed to fit standard copper and steel pipes. They slide on easily during installation and provide consistent insulation performance.
| Property | Standard Value / Details |
|---|---|
| Material | NBR/PVC Elastomeric Foam |
| Wall Thickness | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm (compatible with standard industrial pipe diameters) |
| Density | 40 - 55 kg/m³ |
| Service Temperature Range | -40℃ to +105℃ |
| Flame Retardancy | Class 0 & Class 1 (BS 476) / UL 94 V-0 Rated |
| Compression Resilience | > 80% (maintains shape under typical structural shifts) |
Our insulation systems are designed to operate reliably in diverse climates and demanding environments.
Used to prevent condensation on cold HVAC pipes in high-humidity areas, protecting ceilings and walls from moisture damage.
Provides low-temperature thermal insulation, preventing frost build-up on ammonia pipes, chiller units, and process equipment.
The open-cell versions absorb ambient noise and reduce structural vibrations in mechanical rooms, hotels, and hospitals.
Designed for airports, train stations, and large offices, where Class 0/1 flame retardancy is required to meet local fire safety regulations.
Resists environmental pollutants, mild chemical splashes, and physical wear, ensuring reliable thermal control for industrial process piping.
Retains heat and resists UV weathering on outdoor pipelines operating at temperatures up to 105℃.
Kingflex products undergo regular testing to ensure compliance with global standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM.
These certifications verify that our materials meet safety, toxicity, and environmental standards for use in public, commercial, and industrial structures.


We work closely with engineering teams worldwide, providing technical documentation and logistics support for global projects.
Our products are designed for straightforward installation. Whether insulating complex central HVAC machinery or large industrial pipelines, our team can provide detailed CAD drawings and installation manuals.
From material specification to final testing on site, we help engineers and contractors ensure compliance with local building codes.
Find answers to technical questions about elastomeric rubber foam insulation and custom project ordering.
It is primarily used for insulating HVAC ducts, air conditioning lines, chilled water pipes, building structures, and industrial process pipelines to control heat transfer and prevent condensation.
Yes, our rubber foam products are formulated with flame retardants to meet BS 476 (Class 0 and Class 1), UL 94 V-0, and other international safety standards.
Elastomeric rubber foam is a flexible, closed-cell material that is highly resistant to moisture, making it suitable for cold systems and condensation control. Rock wool is a fibrous material with high temperature resistance, suitable for high-heat industrial applications and structural fire protection.
Yes, we offer OEM and ODM services. We can adjust the thickness, inner diameter, density, and color to meet specific project specifications.
Our materials have been certified under BS 476, CE, REACH, RoHS, UL94, and ASTM standards, confirming their suitability for global projects.
Yes, we maintain traceability records from raw material batching through extrusion, curing, and packaging to ensure consistent quality.
We produce sheet rolls in thicknesses ranging from 6mm to 50mm, allowing for single-layer or multi-layer installations as needed.
Under typical operating conditions and with proper installation, our elastomeric materials have an expected service life of 10 to 15 years.
Browse our specialized cryogenic, high-thickness, and soundproofing insulation options.