Explore our primary selection of NBR/PVC elastomeric rubber foam solutions, certified to global fire safety and thermal performance standards.
As carbon neutrality targets tighten globally, HVAC efficiency and industrial pipeline management require highly reliable thermal control barriers. Standard insulation systems often struggle under heavy mechanical compression or localized moisture ingress. Here is how advanced elastomeric foam addresses global structural pain points:
Unlike open-cell materials or fibrous mineral wools, our NBR/PVC closed-cell structure (exceeding 98% closed cells) creates a built-in vapor retarder. This stops condensation from forming on freezing or chilled fluid pipelines, eliminating structural degradation risks and mold growth.
Our solutions protect everything from cryogenic lines operating down to -200°C up to low-pressure steam pipelines up to +105°C. This limits energy waste while safeguarding technicians against surface burns.
Acoustic resonance in high-capacity pipelines is a major safety concern in factories and commercial high-rises. Kingflex high-density cellular configurations effectively block airborne sound waves and deaden mechanical vibration.
Verify the physical properties of our NBR/PVC elastomeric foam sheets, rolls, and tubes.
| Performance Parameters | Kingflex Standard Foam Roll | Aluminium Foil Covered Board | Cryogenic System Grade |
|---|---|---|---|
| Base Material Structure | NBR / PVC Blended Closed-Cell | NBR/PVC with Metal Laminate Layer | Specialized Dienes Elastomeric Rubber |
| Operating Temperature | -40°C to +105°C | -40°C to +105°C | -200°C to +105°C |
| Thermal Conductivity (λ) | ≤ 0.035 W/(m·k) at 0°C | ≤ 0.032 W/(m·k) at 0°C | ≤ 0.028 W/(m·k) at -150°C |
| Water Vapor Permeability | μ ≥ 10,000 | μ ≥ 20,000 (reinforced) | Fully Closed Moisture Barrier |
| Fire Classification | Class 0 / Class 1 (BS 476 Part 7/6) | Class O Surface Spread | UL94 V-0, ASTM Compliant |
| Material Density | 40 - 55 kg/m³ | 50 - 65 kg/m³ | 60 - 85 kg/m³ |
Supported by over 40 years of industrial experience through Jinwei Group (est. 1979), Kingflex operates highly automated factories. We supply specialized solutions directly to commercial projects, petrochemical refineries, and marine yards.
Located in Dacheng, China—a hub for energy-saving building materials—Kingflex is a combined production and trading powerhouse. Our facility operates 5 large-scale automated assembly lines, delivering an annual production capacity exceeding 600,000 cubic meters.
Kingflex is a designated manufacturer for major government divisions, including the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry. Our internal research department consists of 8 professional engineers focusing on molecular formula upgrades, clean gas emissions during manufacture, and advanced lamination technologies.


Over the past 16 years, Kingflex has exported energy-efficient insulation products to over 66 countries and regions across Europe, the Middle East, Southeast Asia, and the Americas.
Whether insulating HVAC chilled water pipes, deep-freeze cold chains, or chemical steam processing tubes, we provide detailed technical support, layout planning, and post-installation reviews for engineering operations globally.


Select from our primary geometric configurations built to meet ASTM, BS 476, and international building safety codes.
Ideal for large surface areas such as ductwork, air handling units, and large-diameter process pipes.
Specifically designed for straightforward installation on copper tubes and steel piping networks.
To ensure reliable performance in sensitive commercial environments, our products are independently tested and certified:




* We maintain full batch traceability from raw elastomer compounding through final thermal curing.
Get answers to common technical, installation, and procurement questions about elastomeric foam rolls.
We pride ourselves on transparent communication and reliable delivery timelines. Below are verified screenshots of client communication and factory inspections:





Choose from our range of specialized elastomeric sheet rolls, high-density acoustic barriers, and thermal insulation pipes.