Explore our top-tier NBR/PVC sheets, rolls, and pre-formed pipe insulations built to international specifications.
In an era marked by rapid urbanization, climate change mitigation, and stringent building energy conservation codes, thermal efficiency has transitioned from a structural consideration to a global compliance mandate. Elastomeric NBR/PVC rubber foam insulation represents the pinnacle of modern closed-cell technology, offering unparalleled resistance against moisture vapor transmission, heat transfer, and acoustic disturbances.
The global industrial insulation sector faces massive demands to curb carbon footprints and energy losses. From critical HVAC applications in high-occupancy commercial complexes to extreme cryogenic management in petrochemical processing, thermal system optimization is essential. Flexible rubber foam insulation stands out because of its exceptional installation flexibility, durability under harsh weather conditions, and stellar resistance against corrosion under insulation (CUI).
Furthermore, leading international design standards (such as ASHRAE 90.1, BS 476 fire certifications, and regional green building systems like LEED and BREEAM) heavily favor materials that show extremely low aging degradation rates. In cold-chain logistics, deep chilling distribution networks, and massive mechanical pipe circuits, the choice of elastomeric insulation directly governs long-term operational expenditures (OPEX).
Combining 40+ years of industrial inheritance with cutting-edge automated processing.
Established under the umbrella of the prestigious Jinwei Group (Kingway Group)—whose insulation manufacturing history began back in 1979 as the pioneering manufacturer of thermal insulation materials north of the Yangtze River—Kingflex Insulation Co., Ltd. has evolved into an energy-saving, environmental-friendly titan. We integrate research & development, advanced production lines, global logistics, and technical field services seamlessly from Dacheng, China—widely recognized as the green building materials capital.
Our dedicated facility operates 5 large automatic assembly lines, featuring state-of-the-art closed-loop process controls that ensure perfect chemical foaming uniformity. With an annual production capacity exceeding 600,000 cubic meters, Kingflex has attained the distinguished status of an approved supplier by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
The Dacheng regional insulation cluster represents the world's most concentrated ecosystem for thermal materials. This concentration yields massive structural supply-chain benefits that translate directly into competitive pricing and reliable lead times for global projects. By maintaining raw material processing facilities, chemical input supply lines, and deep water-port logistics integrations (close to Tianjin Port) in one centralized zone, we eliminate typical logistic friction points.
Furthermore, our automation efficiencies mean that energy and material consumption per cubic meter of rubber foam is minimized. Our 5 automated lines execute real-time thickness profiling, automated packaging, and inline quality scanning, ensuring that every batch of NBR/PVC insulation roll or pre-formed tube displays identical technical properties across its entire volume.
From standard residential installations to high-risk industrial cryogenic configurations.
Perfect condensation control on chilled water pipes, refrigeration lines, and central air conditioning air distribution ducts in hotels, commercial malls, and hospitals.
Ensuring thermal insulation and corrosion prevention (CUI) for chemical process piping, petroleum transport, steam networks, and heavy processing tanks.
Specifically engineered cryogenic elastomeric systems developed for LNG lines, ultra-low temperature liquid handling, and cold-chain logistical warehouses.
Verify our exact design metrics against your project's mechanical engineering requirements.
| Parameters | Value / Specifications |
|---|---|
| Material Composition | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) blend |
| Thickness Range | 6mm to 50mm |
| Core Density | 40 – 55 kg/m³ |
| Service Temperature Limits | -40℃ to 105℃ |
| Closed Cell Ratio | > 98% (Extremely low moisture vapor transmission) |
| Compression Resilience | > 80% recovery under standard deflection tests |
| Parameters | Value / Specifications |
|---|---|
| Material Composition | Premium elastomeric NBR/PVC closed-cell matrix |
| Wall Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) Range | 6mm to 114mm (1/4" to 4" standard piping) |
| Core Density | 40 – 55 kg/m³ |
| Moisture Resistance Factor | High water vapor diffusion resistance (μ factor) |
| Coating Option | Smooth sprayed outer skin for reduced air flow friction |
Our engineering division maintains rigorous certification standards to ensure project approval across global jurisdictions.
To comply with strict code requirements in the European Union, the Americas, and Southeast Asia, Kingflex thermal insulation products undergo rigorous third-party auditing. Our formulations are certified according to BS 476 (Class 0 & Class 1 fire spread), CE Mark compliance, REACH chemical safety lists, RoHS directives, UL94 flammability ratings, and standard ASTM testing procedures. This confirms our products emit minimal toxic smoke and do not sustain combustion during critical building incidents.
Our laboratory features dedicated thermal conductivity measurement instruments, compression testing rigs, environmental aging chambers, and gas chromatography apparatuses. Our 8 senior chemical engineers constantly work to optimize the balance between polymer plasticizers and blowing agents, pushing the performance limits of elastomeric insulation.
By using closed-cell control systems, we prevent moisture absorption. Even when exposed to high-humidity environments, Kingflex products maintain a stable, low thermal conductivity rating over years of operation, preventing energy efficiency degradation.
Ensuring full batch transparency, quick turnaround times, and verified product authenticity for all large-scale projects.
Every production batch of Kingflex NBR/PVC elastomeric rolls and pipes is embedded with trace barcodes during the packing stage. This gives procurement managers, project engineers, and QA inspectors full visibility into the raw material batches, chemical formulas, manufacturing dates, and standard laboratory test logs for their shipment. This accountability eliminates compliance issues on-site and assures project managers that they are receiving verified quality insulation materials.
Take a look below at verified logistics and order logs from real global clients who sourced directly from our Dacheng factories, showing outstanding feedback and smooth project execution.
A manufacturing facility is only as capable as its workforce. At Kingflex, we combine skilled craftsmanship with automated processing. Our production floor operates under strict safety protocols and employs 230 trained production workers, backed by our specialized engineering team.
Additionally, our 6 dedicated international sales managers work closely with estimators and logistics teams to coordinate quotes, shipping documentation, customs clearance, and container configurations. This helps keep B2B freight costs as low as possible for our clients.
Take a look at Kingflex elastomeric insulation materials applied in massive physical structures and mechanical networks.
Expert answers regarding the application, compliance, performance, and ordering of elastomeric insulation.
Elastomeric rubber foam is a flexible, closed-cell insulation material. It is widely used for HVAC systems, air conditioning pipes, building thermal insulation, commercial air ducts, industrial cold insulation for refrigeration piping, steam lines, and acoustics. Its built-in vapor barrier helps prevent condensation on cold piping systems.
Yes, Kingflex rubber foam is formulated with advanced fire retardants. It meets strict international fire safety regulations, including BS 476 Class 0 and Class 1 ratings, and UL94 flammability requirements. This makes it suitable for use in high-occupancy commercial and industrial projects.
Rubber foam has a flexible, closed-cell structure with built-in moisture resistance, making it ideal for HVAC, plumbing, and refrigeration systems where condensation is a concern. Rock wool is a fibrous material that handles higher temperatures, making it suitable for industrial high-temperature steam lines and specialized fire containment partitions.
Yes. We support customized production and OEM services to meet your specific project needs. We can customize sheet dimensions, density configurations, adhesive Backing, aluminum foil shielding, and pipe inner diameters.
Our products have passed BS 476, CE, REACH, ROHS, UL94, and ASTM testing. These certifications ensure our products comply with global standards for safety and eco-friendly design.
Yes. Every shipment is tagged with a batch number, offering complete traceability from raw material processing through to final manufacturing. This provides reliable quality assurance for project managers.
We can manufacture elastomeric sheet rolls in thicknesses ranging from 6mm to 50mm, allowing you to choose the optimal layer thickness to meet your thermal design targets.
Under normal operating conditions and standard maintenance schedules, Kingflex elastomeric materials have an expected service life of 10 to 15 years, maintaining reliable performance over time.
Compare acoustic decoupling structures, high-thickness insulation boards, and specialized refrigeration tubes.
Specialty cryogenic barriers, high-corrosion resistant configurations, and mineral rock wool matrices.
For architectural designs specifying mineral fiber solutions alongside our core NBR/PVC elastomeric formulations, we maintain dedicated manufacturing lines for high-density rock wool boards and flexible blankets. These are optimized for high-temperature zones like chimney surrounds and process steam equipment.
Our engineering and estimating departments provide calculated product takeoffs, customized density adjustments, density testing compliance documentation, and exact port-delivery logistics cost estimates. Contact our Dacheng export headquarters today for factory-direct wholesale pricing.
Kingflex