Kingflex
Explore our elite selection of flexible NBR/PVC closed-cell foams, engineered pipelines insulation, and sound-absorbing structures designed for commercial and industrial installation.
Empowering commercial architecture, petrochemical plants, and the LNG value chain with advanced thermal protection systems.
Global energy requirements demand a drastic reduction in HVAC and pipeline thermal losses. In industrial ecosystems, inadequate insulation accounts for up to 30% of total operational heat gain or loss. Kingflex closed-cell technology provides the low thermal conductivity path ($\le 0.034$ W/m·K at 0°C) required to meet modern net-zero initiatives and reduce environmental footprints.
Condensation control is the primary challenge in chilled water piping systems. With a water vapor diffusion resistance index ($\mu$) exceeding 10,000, our NBR/PVC elastomeric formulations prevent moisture intrusion, avoiding structural degradation, corrosion under insulation (CUI), and dangerous indoor air quality hazards from mold growth.
For liquefied gas networks and ultra-low temperature applications (down to -200°C), thermal insulation requires specialized flexibility. Standard foams crystallize and crack. Kingflex cryogenic elastomeric structures maintain flexural durability, accommodating cyclical thermal contraction and expansion without cracking or barrier failure.
Thermal insulation is not merely a utility; it is a critical engineering component. Selecting the optimal material requires a deep dive into physical chemistry, mechanical elasticity, and fire-behavior profiles.
Our flagship Elastomeric Rubber Foam (NBR/PVC) series is manufactured using continuous automatic extrusion and vulcanization. This processes raw elastomeric polymers into a micro-cellular, closed-cell geometry. The closed-cell rate exceeds 98%, ensuring the physical barrier holds against environmental moisture while keeping the heat exchange rate minimal.
Unlike open-cell acoustic foams or fibrous mineral wools, Kingflex closed-cell rubber does not rely on an external vapor barrier jacket. The material structure is intrinsically hydrophobic and hermetic throughout its complete volume, providing consistent, lifelong thermal protection even in high-humidity industrial facilities.
| Performance Indicator | NBR/PVC Elastomeric Foam Sheet Roll | NBR/PVC Elastomeric Foam Pipe | Cryogenic Elastic Foam Tube/Sheet |
|---|---|---|---|
| Thermal Conductivity ($\lambda$) | $\le 0.034$ W/(m·K) at 0°C | $\le 0.034$ W/(m·K) at 0°C | $\le 0.032$ W/(m·K) at -100°C |
| Service Temperature Range | -40°C to +105°C | -40°C to +105°C | -200°C to +125°C |
| Density Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ | 50 - 65 kg/m³ |
| Closed-Cell Rate | > 98% | > 98% | > 99% |
| Moisture Resistance Factor ($\mu$) | ≥ 10,000 | ≥ 10,000 | ≥ 15,000 |
| Compression Resilience | ≥ 80% | ≥ 80% | ≥ 85% |
| Standard Thickness Options | 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm, 50mm | Wall: 9mm, 13mm, 19mm, 25mm, 32mm, 40mm (ID: 6mm - 114mm) | Custom Layered Thicknesses (up to 150mm combined) |
With more than 40 years of continuous growth, Kingflex represents Chinese manufacturing excellence and energy-saving technology.
Kingflex Insulation Co., Ltd. was established by the Jinwei Group, which has a historic trajectory dating back to 1979. As the first major manufacturer of thermal insulation materials north of the Yangtze River, Jinwei Group pioneered industrial insulation development in China. Kingflex is now located in Dacheng, the recognized capital of green-building materials, concentrating research and development, production, and global logistics under one modern manufacturing system.
Currently, the factory operates 5 large automatic assembly lines with a designated production capacity of over 600,000 cubic meters annually. Due to our rigorous engineering standards, we are certified as an approved supplier by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, supporting large-scale municipal, petrochemical, and power generation infrastructure projects globally.
Modern Continuous Extrusion Plant
Advanced Laboratory Testing
R&D Polymer Formulation Department
Providing engineered systems built specifically for regional climate conditions, environmental guidelines, and unique physical layouts.
Excellent thermal & sound insulation for ceilings, mechanical rooms, water pipes, and central HVAC ductwork. Offers fire safety, low dust emissions, and zero fiber migration, which prevents mechanical micro-particles in ventilation shafts.
Corrosion protection, sound attenuation, and thermal performance for processing pipelines, high-temperature steam lines, storage tanks, and industrial piping networks subject to harsh chemical exposure and humidity.
Integrated solutions for rail transit cars, high-speed locomotives, marine structures, and aerospace testing units. Meets strict smoke emission and toxicity standards while maintaining lightweight thermal efficiency.
Tested, verified, and certified by independent global testing laboratories for structural fire performance, chemical safety, and mechanical properties.
Navigating varying regional building codes requires strict certification. Kingflex materials are engineered to meet or exceed regional requirements, allowing seamless specification by global consulting engineers. Our quality management systems are certified under international protocols, confirming that every shipment meets designated standards.
How we are innovating elastomeric insulation materials to meet the demands of tomorrow's thermal engineering projects.
Traditional elastomeric foams use halogenated flame retardants to control fire spread. When exposed to extreme fire, halogens can release acidic smoke. Kingflex is scaling production of Halogen-Free Flexible Elastomeric Foams (HF-FEF). These formulations use mineral-based retardants, which limit toxicity in sensitive areas like marine vessels and subways.
Our next R&D phase integrates graphene nanoplatelets within the polymer matrix. Graphene forms a winding path for water vapor molecules, raising the water vapor resistance factor ($\mu$) beyond 20,000. This makes it suitable for underground cooling lines without requiring protective steel casings.
We are updating our manufacturing lines to recover waste thermal energy from curing processes. By using heat exchangers and solar energy arrays at our Dacheng site, we aim to reduce the carbon footprint of our NBR/PVC foams by 25% over the next three years, aligning with global green building certification targets.
Verified screenshots showing our active partnerships, technical discussions, and product approvals from global engineering firms.
Kingflex elastomeric thermal insulation systems are trusted in commercial infrastructure, oil refineries, and marine vessels worldwide.
Technical answers regarding specifications, compliance, ordering, and installation of elastomeric insulation.
Browse our specialized adhesive tapes, cryogenic formulations, and custom sheet rolls for complete thermal insulation installations.
