Explore our foundational range of closed-cell elastomeric rubber foam pipes, sheets, and specialized technical rolls.
Founded by the Jinwei Group, which commands an illustrious history dating back to 1979, Kingflex has established itself as the pioneer of thermal insulation materials north of the Yangtze River. Operating from Dacheng, China—widely recognized as the national capital of green-building materials—we are a state-designated high-tech, energy-saving enterprise.
Our core philosophy revolves around energy saving and systemic carbon footprint reduction. By offering holistic integration across consulting, R&D, structural customization, and professional post-sale guidance, we lead the charge in updating industrial building standards globally.
Over the past 16 years, Kingflex systems have been integrated into architectural and petrochemical projects across more than 66 countries and regions worldwide.
Leveraging state-of-the-art continuous vulcanization and dynamic expansion systems to maintain zero-defect supply chains.
Our designated status from the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry underlines our industrial capacity. Through highly automated closed-loop production, we maintain consistent raw material mixing, extrusion speed control, and uniform foam cell distribution. This results in stable thermal performance even in volatile environmental environments.
With 6 dedicated international sales managers and custom logistics protocols, we handle bulk procurement processes with high efficiency, reducing export handling times by 20% compared to average domestic factories.
The micro-structural science that defines Kingflex closed-cell elastomeric insulation sheets.
Our black color rubber foam insulation is engineered utilizing a high-density, uniform blend of Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC). Through precise temperature-controlled chemical blowing processes, we generate a closed-cell network exceeding 98% total closure rate.
This closed-cell density prevents the migration of ambient water vapor, rendering the material impervious to moisture degradation—a common failure mode in traditional fiberglass or open-cell insulation systems.
| Technical Characteristic | NBR/PVC Rubber Foam Sheets | NBR/PVC Rubber Foam Pipes |
|---|---|---|
| Available Thickness Range | 6mm to 50mm | 9mm to 40mm |
| Inner Diameter (ID) | N/A (Flat Sheet/Rolls) | 6mm to 114mm |
| Density Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Cellular Structure | Closed-cell matrix (>98%) | Closed-cell matrix (>98%) |
| Flame Spread Classification | BS 476 Part 7 Class 0/1, UL94 V-0 | BS 476 Part 7 Class 0/1, UL94 V-0 |
Custom configurations optimized for complex municipal, commercial, and industrial thermal infrastructure.
Condensation control on air handling unit panels, supply and return plenums, and large-diameter HVAC ducts. Minimizes energy leakages in high-occupancy environments.
Ideal for petrochemical and manufacturing process lines, preventing thermal loss in chemical transport pipes while resisting corrosion under insulation (CUI).
Specialized low-temperature configurations for liquid nitrogen and liquid natural gas (LNG) distribution systems, maintaining thermal integrity down to -200°C.
Our core R&D division is focused on pushing the envelope of traditional elastomeric performance. We are currently scaling our next-generation hybrid formulations, which integrate silica aerogels directly into the NBR/PVC polymer melt. This innovation drops nominal thermal conductivity to 0.030 W/(m·K), enabling thinner insulation profiles in spatial-restricted aerospace and naval compartments.
Additionally, in alignment with global decarbonization treaties, Kingflex is transitioning to advanced zero-ODP (Ozone Depletion Potential) and < 1 GWP (Global Warming Potential) physical blowing agents, ensuring our products comply with upcoming carbon tax frameworks and green building certificates globally.
Fully certified and audited by third-party laboratories to ensure safety, environmental compliance, and consistent product behavior.
British Standard Fire Safety Compliance
European Economic Area Standard
Zero Hazardous Additives Certificate
Global Quality Management Protocol
We believe in absolute transparency. Through structured customer interaction portals, we coordinate custom packing requirements, quality control tests, and container loading schedules. The feedback loops from international building project managers highlight our technical execution.
Our sales channels coordinate logistics with dynamic status reports, providing buyers with packaging inspections, dimensional validation reports, and transit updates before dispatch.
Visualizing Kingflex performance across modern industrial developments, urban HVAC layouts, and chemical process infrastructure.
Specific sub-configurations designed to withstand aggressive working environments and complex physical requirements.
Continuous extruded tubes designed for fast sliding installation onto hot/cold pipes.
Impregnated with anti-oxidants to withstand chemical exposure in process pipelines.
Highly flexible cellular matrix for wrapping tight-radius pipe bends and T-joints.
Industrial-grade standard tube for commercial HVAC distribution and cold water pipelines.
Optimized micro-cell wall density for enhanced structural strength and durability.
Designed to prevent surface condensation on building HVAC water return networks.
Multilayer system configurations optimized for industrial deep-freeze cold storage.
Engineered to maintain flexibility under extreme temperatures to prevent micro-cracking.
Designed to isolate LNG and industrial fluid transfer lines with high efficiency.
High-density matrix engineered to block radiant and conductive heat flow.
High-density mineral fibers for specialized high-temperature applications.
Flexible high-temperature barrier suited for furnace walls and boiler insulation.
In-depth insights regarding physical characteristics, structural behavior, and project application guidelines.
Advanced elastomeric sheets, cryogenic barriers, and composite industrial insulation products.
Kingflex