Explore our industrial-grade elastomeric foam rubber rolls, tubes, and specialized systems designed for severe ambient and low-temperature settings.
In modern infrastructure, thermal insulation is no longer just about preventing heat loss. It's a comprehensive science involving energy efficiency, condensation prevention, acoustics, and mechanical durability. Our China Yellow Color Rubber Foam Insulation Sheet Roll represents the next level of specialized protection, offering high visibility, aesthetic appeal, and robust thermal performance in demanding environments.
Unlike standard black insulation, the yellow-colored variant is designed for color-coded industrial zoning, visible maintenance tracking, and cleanroom applications. Developed by Kingflex (a subsidiary of the Jinwei Group with a heritage dating back to 1979), this closed-cell elastomeric material sets new benchmarks for safety compliance and system lifespan.
By using a balanced NBR/PVC polymer blend, we achieve an evenly foamed structure with a closed-cell rate of over 98%. This structural precision guarantees low water absorption and stable thermal conductivity ($\le 0.034$ W/m·K at 0°C), making it a prime option for HVAC ducting, cold-storage units, and industrial processing systems worldwide.
Deep-dive engineering parameters that establish Kingflex yellow rubber foam insulation as the benchmark for thermal control.
The closed-cell configuration prevents convection current movement within the matrix. With a stable operating thermal conductivity, it acts as a reliable thermal barrier in both low-temperature and high-temperature environments, preventing heat migration and maintaining consistent system temperatures.
Moisture ingress is the primary cause of thermal performance failure. Our yellow rubber foam features an integrated vapor barrier with a moisture resistance factor ($\mu$-value) exceeding 10,000. It prevents condensation buildup on cold surfaces without needing additional vapor barriers.
Engineered to meet BS 476, Class 0, and UL94-V0 fire safety standards. In the event of a fire, the compound self-extinguishes upon flame contact, limits flame spread, and generates low smoke density, ensuring safety compliance for indoor installations.
| Property Parameter | Standard Metric / Value | Testing Methods Compliance |
|---|---|---|
| Material Composition | Elastomeric Nitrile-Butadiene Rubber & Polyvinyl Chloride (NBR/PVC) | ASTM D1667 / ISO 1923 |
| Density range | 40 - 55 kg/m³ | ASTM D1622 |
| Thermal Conductivity ($\lambda$) | ≤ 0.034 W/m·K at 0°C, ≤ 0.038 W/m·K at 40°C | ASTM C518 / ISO 8301 |
| Moisture Permeability Factor ($\mu$) | ≥ 10,000 (Vapor barrier built-in) | BS EN 12086 / ASTM E96 |
| Service Temperature range | -40°C to 105°C (Flexible down to cryogenic levels) | ASTM C411 |
| Fire Safety Rating | Class 0 / Class 1 / UL 94 V-0 / BS 476 Part 6/7 | BS 476, UL 94, ASTM E84 |
| Compressive Resilience | ≥ 80% recovery rate | ASTM D1056 |
| Water Absorption Rate | ≤ 0.1% by weight | ASTM C209 |
Where specialized colored elastomeric sheeting is used across global industrial projects and architectural spaces.
In high-tech electronics factories and clean pharmaceutical rooms, identifying pipe content quickly is essential. Our yellow color insulation sheet roll simplifies inspection and maintenance by color-coding systems directly, reducing the need for secondary color tapes or jackets.
For operations involving temperatures below freezing, standard insulation can crack under thermal shock. Kingflex's NBR/PVC matrix retains flexibility down to -40°C, providing structural support to minimize insulation stress on cryogenic pipes.
For large public spaces like hotels, hospitals, and shopping centers, our sheeting is applied directly to sheet metal ducts. It provides thermal resistance to prevent condensation while absorbing system vibration and noise, maintaining quieter, drier indoor environments.
Industrial processing pipelines carrying high-temp steam or volatile chemicals rely on corrosion-resistant insulation. Our yellow rubber foam serves as a barrier against ambient moisture, helping to mitigate corrosion under insulation (CUI).
Kingflex Insulation Co., Ltd. is based in Dacheng, China—a hub for green building materials. This strategic location gives us access to a complete supply chain, from raw chemical sourcing to logistics, ensuring production continuity even during market fluctuations.
We operate 5 modern automatic assembly lines with an annual capacity exceeding 600,000 cubic meters. This automated setup ensures consistent foaming density, dimensional stability, and edge-to-edge uniformity across large orders.
As an approved thermal insulation manufacturer for the energy, power, and chemical sectors, we trace every batch from formulation to final delivery. This end-to-end quality control guarantees that products shipped to global ports meet all project specifications.
How we are preparing for the next generation of insulation solutions, focusing on sustainability and thermal efficiency.
We are phasing out standard halogenated flame retardants, moving toward halogen-free, zero-VOC elastomeric systems that emit minimal smoke during combustion, aligned with global green building standards.
Our ongoing R&D explores infusing graphene and silica aerogels into our NBR/PVC compound. This helps lower thermal conductivity to under 0.030 W/m·K while maintaining the material's flexibility.
We are developing high-stability color pigments, like our signature yellow, designed to resist fading under UV exposure in outdoor installations, ensuring clear, long-term system identification.
Established under the Jinwei Group (founded in 1979 as a pioneer of insulation materials north of the Yangtze River), Kingflex has grown into a leading developer of energy-saving solutions.
Our R&D department is staffed by 8 professional engineers, supported by 230 production specialists. We maintain rigorous internal standards to verify that every raw material batch and extruded roll meets our specifications.
Our products carry international certifications, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This compliance makes Kingflex a trusted supply partner for mechanical contractors, engineering firms, and industrial distributors globally.
Comprehensive specifications for sheets and pipes, assisting engineers in selecting the correct thickness, density, and thermal limits.
Material Structure: Closed-cell NBR/PVC blend
Available Thicknesses: 6mm - 50mm
Core Foam Density: 40 - 55 kg/m³
Service Temperature Limits: -40℃ to 105℃
Key Advantages:
Material Structure: Form-extruded NBR/PVC cylinder
Available Thicknesses: 9mm - 40mm
Inner Diameter Range: 6mm - 114mm
Core Foam Density: 40 - 55 kg/m³
Service Temperature Limits: -40℃ to 105℃
Key Advantages:
View our manufacturing facilities, test laboratories, and international shipments of Kingflex insulation.
Proof of direct support and technical consultations with our global client base.
Expert answers addressing material performance, chemical compliance, and custom ordering logistics.
Browse our full range of elastomeric sheets, tubes, and specialized insulation systems.
Kingflex
