Kingflex
Kingflex
Engineered for extreme reliability. Browse our featured range of NBR/PVC closed-cell tubes, sheets, and high-density lagging systems.
Ultra-low temperature elastomeric barrier specifically formulated to prevent thermal gain and stress cracks in liquid nitrogen and gas systems.
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Color-coded elastomeric piping insulation, providing quick lines identification, superb UV stability, and condensation control.
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High-density flexible sheet rolls optimized for broad surface vessels, large-diameter ductwork, and heavy mechanical HVAC housings.
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Precision extruded closed-cell tubing with optimal wall thickness uniformity. Highly flexible for seamless installation on complex pipeline geometries.
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Industry-standard flexible insulation tube providing excellent thermal efficiency for residential and commercial heating and cooling.
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Cost-efficient structural piping sleeves designed to prevent line freezing and energy loss in volatile climates.
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Designed for acoustical deadening, this board absorbs high-frequency vibrations and controls ambient noise in machine compartments.
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Broad-spectrum thermal protection covering extreme hot down to ultra-low cold loops, mitigating structural thermal expansion.
Get QuotesKingflex Insulation Co., Ltd. stands as a premium manufacturing and trading combo specializing in state-of-the-art thermal insulation products. Our cutting-edge research, development, and production facility is located in the renowned capital of green-building materials in Dacheng, China.
As an energy-saving, environmentally friendly enterprise, Kingflex concentrates heavily on the research, development, production, and global sales of advanced elastomeric solutions. We take energy conservation and consumption reduction as our core operational philosophies. We support clients from the engineering phase to final commissioning by delivering comprehensive consulting, custom R&D, structural formulation, onsite installation guidance, and dedicated post-sales support.
Established by the prestigious Jinwei Group, which boasts more than 40 years of industrial history since its foundation in 1979, Kingflex carries forward a rich legacy. Jinwei Group was historically the first thermal insulation manufacturer established north of the Yangtze River, paving the way for China's modern eco-efficient infrastructure building materials.
Our human capital drives our manufacturing consistency. The Kingflex team is a highly integrated, talented group driven by the shared vision of providing first-class thermal efficiency options for complex global infrastructures.
This scale enables Kingflex to service over 66 countries across North America, Europe, the Middle East, Southeast Asia, and South America, maintaining a flawless trace record of product lifecycle and quality delivery for over 16 years.
Why Kingflex Pipe Insulation Lagging Tape and Sleeves represent the state-of-the-art in moisture barrier and thermal resistance engineering.
By blending premium NBR (Nitrile Butadiene Rubber) and PVC (Polyvinyl Chloride), our chemists produce a highly elastomeric, low-density foam structure. The matrix contains millions of microscopic, non-communicating gas pockets, providing outstanding structural integrity and minimizing ambient moisture transfer.
Fire retardants integrated into the formulation produce self-extinguishing traits. When subjected to flame tests, the material restricts flame spread and generates minimal smoke, matching strict civil safety laws globally, including Class 0 ratings.
Due to the high water vapor resistance factor (μ), Kingflex insulation maintains its thermal conductivity over time, eliminating the need for separate vapor jackets. This drastically lowers corrosion under insulation (CUI) risks in metal pipes.
Technical parameters comparing NBR/PVC closed-cell rubber foam insulation sheet and pipe line structures.
| Property Parameter | Black Rubber Foam Sheet Roll Specifications | Black Rubber Foam Pipe Insulation Specifications |
|---|---|---|
| Core Base Material | NBR/PVC Elastomeric Foam Blend | NBR/PVC Elastomeric Foam Blend |
| Available Thickness | 6mm to 50mm | 9mm to 40mm |
| Inner Diameter (ID) Range | N/A (Flat sheet/roll structure) | 6mm to 114mm (Inner diameter matching) |
| Density Range | 40 to 55 kg/m³ | 40 to 55 kg/m³ |
| Service Temperature Limit | -40℃ to +105℃ (Also cryogenic rated versions) | -40℃ to +105℃ |
| Thermal Conductivity | λ ≤ 0.034 W/(m·k) at 0℃ | λ ≤ 0.034 W/(m·k) at 0℃ |
| Closed-Cell Rate | Over 98% uniform pocket matrix | Over 98% uniform pocket matrix |
| Compression Resilience | Greater than 80% recovery rate | Greater than 80% recovery rate |
| Fire Ratings & Standards | BS 476, CE, REACH, RoHS, UL94, ASTM | BS 476, CE, REACH, RoHS, UL94, ASTM |
Different jurisdictions demand unique building codes, environmental certifications, and fire ratings. As an exporter to over 66 nations, Kingflex guarantees full traceability of material batches alongside third-party certified compliance.
We satisfy rigorous international certification testing:
By sourcing raw rubber polymers and utilizing advanced production systems in Dacheng, Kingflex enjoys direct cost advantages without sacrificing quality.
Bulk Production Scale: Our 5 automatic assembly lines maintain continuous manufacturing, reducing lead times for major commercial installations.
Customization (OEM/ODM): We adapt products to your requirements, offering self-adhesive backing, custom thickness (6mm to 50mm), varying inner diameters, color codes, and protective aluminum or structural outer laminations.
Logistical Connectivity: Close proximity to major Chinese shipping ports ensures fast sea freight dispatch, competitive shipping rates, and reliable logistics tracking.
Verified compliance is central to our reputation. We maintain strict ISO and global standards for safety and quality.
A visual tour of our material labs, production facilities, and modern warehouses.
How our elastomeric foam solutions perform in demanding engineering scenarios globally.
Ideal for large flat surfaces or complex geometries, this thermal barrier sheet is widely used across these sectors:
Extruded into precise tube configurations, this option excels in these applications:
See our products on-site and read real-time communications showing the reliability of our supply chain.
Technical support, material specifications, regulatory compliance, and procurement options answered by Kingflex engineers.
Elastomeric rubber foam insulation is mainly used for HVAC ducts, commercial air conditioning pipes, building thermal insulation, cold insulation for industrial pipelines, and sound attenuation. Its closed-cell structure makes it exceptionally suited for chilled water systems, preventing condensation and avoiding under-insulation corrosion.
Yes, our rubber foam insulation is formulated with active flame-retardant additives to ensure self-extinguishing performance. It achieves leading safety ratings including BS 476, UL94, and ASTM testing, satisfying strict building and industrial safety regulations globally.
Rubber foam features a highly flexible, closed-cell, moisture-proof structure, making it ideal for HVAC, refrigeration, and acoustic insulation without requiring secondary moisture jackets. Rock wool is an open-fiber mineral matrix that resists extremely high temperatures, making it suitable for heavy-duty industrial heat pipes or high-temperature steam lines.
Yes, we provide full OEM and ODM services. We can customize density, wall thickness, inner diameter, color coding, self-adhesive backing, and specialized outer laminated foils (such as aluminum protective jackets) to match your specific engineering needs.
Our products have passed BS 476, CE, REACH, RoHS, UL94, ASTM, and other international certifications. This ensures compliance with environmental, fire safety, and chemical safety standards worldwide.
Yes, all Kingflex products have complete traceability. Each batch is logged with production date, raw material origin, chemistry analysis, and Quality Assurance inspector stamps, ensuring transparency and project compliance.
We can produce thicknesses ranging from 6mm to 50mm. Standard thicknesses include 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm, and 50mm rolls. Custom thicknesses are available upon request.
When installed correctly and used within recommended operating conditions, our rubber foam insulation typically lasts 10 to 15 years. For outdoor installations, adding protective paint or protective foil jackets extends the lifespan by shielding the foam from UV degradation.
Ensuring consistent supply chain security and fast logistics dispatch from Dacheng, China.
Explore our specialized thermal management options, including self-adhesive sheets, cryogenic barriers, and rock wool insulation.
Designed for cryogenic systems, this formula resists extreme temperature drops without structural degradation.
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Features a high-grip self-adhesive backing for fast, reliable application on large ventilation ducts.
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Highly flexible elastomeric sheet rolls for seamless thermal insulation on large industrial tanks.
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Thick, high-density rubber sheet rolls providing superior thermal barrier properties for extreme temperature differentials.
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Acoustically optimized foam structure that dampens vibration and controls airborne noise in mechanical areas.
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Cryogenic temperature protection foam formulated to resist stress cracking in liquefied natural gas piping.
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Specially formulated elastomeric material that remains flexible and effective in extreme sub-zero systems.
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Premium closed-cell insulation tubing providing reliable thermal and condensation control on copper pipes.
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Standard grade flexible insulation tube designed for commercial heating and plumbing applications.
Chemically treated elastomeric structure that protects metal piping from corrosion under insulation (CUI).
Extremely flexible and lightweight insulation tubing for quick installation on bent lines.
Classic closed-cell rubber pipe sleeve, providing excellent condensation control and thermal efficiency.
Multi-purpose flexible foam tube designed for standard residential piping insulation.
Industry-standard HVAC line set insulation, protecting air conditioning lines from thermal loss.
Multi-layered elastomeric system designed for heavy cryogenic industrial applications.
Flexible elastomeric sheeting formulated to resist sub-zero thermal cycling stress.
Dual-functional insulation that performs consistently across extreme hot and cold temperatures.
Heavy-duty cryogenic line insulation sleeve designed for extreme sub-zero performance.
High-density mineral wool board providing outstanding thermal resistance and structural fire protection.
Flexible high-temperature mineral fiber blanket, ideal for furnace walls and hot pipes.