Explore our premium grade closed-cell rubber foam, acoustic absorbers, and low-temperature thermal insulation tubes.
Globally, industrial processing units and commercial properties account for over 40% of standard energy consumption. High-quality isolante tubi (insulation tubes) act as a primary thermal shield, preventing energy losses in building envelopes, HVAC liquid lines, and process pipelines. As global sustainability standards like ASHRAE 90.1, EN 14304, and local building energy efficiency mandates become more stringent, modern designers demand insulation materials that go beyond basic thermal performance.
Today’s high-performance insulation demands a multi-functional architecture: excellent resistance to fire transmission, moisture intrusion barrier properties, and superior acoustic absorption to limit industrial decibel leaks. Kingflex closed-cell technology addresses these critical challenges by offering a structured NBR/PVC polymer matrix featuring a closed-cell ratio exceeding 98%. This prevents capillary suction and moisture migration, ensuring the insulation retains its low thermal conductivity ($\lambda \le 0.034$ W/m·K at 0°C) throughout its operational lifetime.
Our elastomeric thermal and acoustic barriers conform to international standards, ensuring stability under extreme thermal shifts.
Standard Dimensions:
Material Matrix: NBR/PVC Elastomeric Foam
Thickness Range: 6mm to 50mm
Bulk Density: 40 - 55 kg/m³
Operational Range: -40℃ to 105℃
Key Performance Advantages:
• Even closed-cell structure (>98% cell density)
• Compression resilience index >80%
• High moisture resistance factor (μ ≥ 10,000)
• Built-in flame-retardant chemistry
Standard Dimensions:
Material Base: NBR/PVC Foam Compound
Wall Thickness: 9mm to 40mm
Inside Diameter: 6mm to 114mm
Operational Range: -40℃ to 105℃
Key Performance Advantages:
• Automated extrusion ensures consistent wall thickness
• Protects metal pipes against condensation & corrosion under insulation (CUI)
• High elasticity simplifies installation on complex joints and bends
Cryogenic Application Range:
Target Temp: Down to -200℃
Structure: Multi-layered compound systems
Material: Specialized low-temp elastomeric matrix
Key Performance Advantages:
• Designed for LNG pipelines, liquid ethylene and nitrogen transmission lines
• Remains flexible at sub-zero temperatures, resisting stress cracks
| Physical Property | NBR/PVC Elastomeric Rubber Foam | Traditional Rock Wool Core | Polyethylene (PE) Foam |
|---|---|---|---|
| Thermal Conductivity (0°C) | ≤ 0.034 W/(m·K) | ≤ 0.040 W/(m·K) | ≤ 0.038 W/(m·K) |
| Water Vapor Permeability (μ) | ≥ 10,000 (Built-in moisture barrier) | 1 (Requires external vapor barrier) | ≥ 3,500 |
| Fire Rating Class | Class 0 / Class 1 (BS 476), V-0 (UL94) | Class A1 (Non-combustible) | Class B1/B2 (Flame-retardant variants) |
| Installation Flexibility | Excellent (Highly flexible elastomeric sheet/pipe) | Poor (Rigid blocks or dust-emitting blankets) | Moderate (Semi-flexible) |
| Service Life Cycle | 10 to 15 Years (In-situ performance stability) | 8 to 12 Years (Degrades if moisture penetrates) | 8 to 10 Years |
Years Industrial Experience
Cubic Meters Annual Capacity
Advanced Production Lines
Exporting Destinations
From central air distribution pipelines to industrial process systems, Kingflex solutions deliver thermal insulation and sound deadening.
A key application for our closed-cell isolante tubi is commercial ventilation ducts, chilled water lines, and hot water routing pipelines. Preventing condensation on cold lines stops microbial growth and keeps indoor air clean. The low thermal conductivity maintains temperatures over long piping runs, maximizing central chiller and heat pump efficiency.
Chemical processing environments require insulation that resists atmospheric corrosion, high mechanical stress, and volatile temperature shifts. Kingflex rubber insulation panels and pipe sections provide a reliable barrier against moisture infiltration, minimizing corrosion under insulation (CUI) risks in critical process flow systems.
At ultra-low temperatures, standard elastomeric compounds lose flexibility and crack. Our specialized cryogenic rubber foam system is engineered to handle cryogenic liquids (down to -200°C). It maintains elasticity and acts as a barrier against thermal shock and convective heat transfer in LNG and cold chain infrastructure.
High-density acoustic panels and flexible foam rolls dampen structural vibrations and absorb airborne mechanical noise in theater walls, ceiling cavities, HVAC plenum chambers, and industrial enclosure linings, ensuring comfortable acoustics.
Kingflex is established by the Jinwei Group, which carries a heritage spanning more than 40 years. Established in 1979, the group was the first commercial manufacturer of thermal insulation materials north of the Yangtze River. Dacheng, China, is widely recognized as the capital of green-building materials, and it is here that our modern production and research facilities operate.
As an energy-saving, environmentally conscious enterprise, Kingflex operates with energy saving and consumption reduction as our core concept. We deliver complete insulation solutions via dedicated technical consultation, advanced manufacturing, on-site installation guidance, and reliable after-sales support to lead the global building materials market.
Our production facilities utilize 5 large automatic assembly lines, producing over 600,000 cubic meters annually. This high-capacity output has earned Kingflex designated production status from the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Our quality control relies on strict testing protocols. With eight professional engineers in our R&D department, six international sales managers, and 230 production personnel, we ensure that every batch of material meets international performance benchmarks.
Our manufacturing and product designs are certified by recognized third-party agencies to ensure compliance with global building codes.
Our solutions are specified on prominent HVAC engineering, commercial development, and industrial pipeline projects worldwide.
Real feedback and order communications from our international distributors and project procurement managers.
Gain technical clarity regarding elastomeric foaming parameters, performance specifications, and system installations.
Choose from our specialized line of self-adhesive rolls, heavy-duty rock wool boards, and flexible elastomeric tubes.
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