Explore our flagship elastomeric rubber foam insulation rolls specialized for temperature stabilization, condensation control, and structural energy efficiency.
Self-adhesive backing provides ultra-fast installation on Luxembourg logistics facility ductworks.
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Advanced cryogenic protection for liquid gas pipelines and high-precision laboratory systems.
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Highly flexible low-temperature insulation series for heavy chemical processes.
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Specially synthesized for ultra-low applications, ensuring thermal stability.
View SpecificationsLuxembourg's commercial building landscape is undergoing an unprecedented shift toward carbon neutrality, driven by the Grand Duchy's strict building energy directives (such as the *Règlement grand-ducal sur la performance énergétique des bâtiments*). Real estate expansions across Kirchberg, Belval, and Cloche d’Or require robust, high-performance mechanical systems that eliminate heat losses and guarantee condensation control.
Closed-cell elastomeric rubber foam sheets have emerged as the standard specification for cooling, ventilation, and hot water systems. In Luxembourg's climate, where high humidity levels often coincide with warm summers, chilled water pipelines in large administrative and financial centers are highly vulnerable to condensation. Kingflex NBR/PVC insulation sheet rolls supply the absolute moisture vapor barrier ($\mu \ge 10,000$) required to maintain long-term insulation values and prevent structural water damage.
Additionally, with major hyper-scale data centers operating in Contern and Betzdorf, the thermodynamic efficiency of massive chiller plants is critical. Kingflex elastomeric foam provides the thermal stability needed to maximize Power Usage Effectiveness (PUE) ratios, serving as a reliable backbone for local high-tech infrastructure.
Kingflex Insulation Co., Ltd. operates as a specialized manufacturing and trading combo for thermal insulation systems. Kingflex’s research, development, and state-of-the-art manufacturing center is located in China's green building materials hub. As an energy-saving, environmentally conscious enterprise, we focus on delivering complete project consultation, product customization, and site installation guidelines.
Backed by the Jinwei Group, which boasts over 40 years of pioneering manufacturing history starting in 1979 as the primary thermal insulation fabricator north of the Yangtze River, Kingflex utilizes generations of mechanical expertise. Our dedicated team consists of 8 professional R&D chemical engineers, 6 international customer managers, and over 230 specialized production staff.
Today, Kingflex operates 5 large-scale fully automated assembly lines, with an annual production capacity exceeding 600,000 cubic meters. Our materials are distributed across 66 countries, ensuring standard compliance in demanding commercial, chemical, marine, and aerospace projects.
Deep dive into the thermodynamic parameters, dimensions, and chemical properties that make Kingflex rubber foam sheets the industry benchmark.
Our elastomeric insulation sheets are composed of a high-quality Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) blend, formulated with advanced blowing agents to create a homogeneous, micro-cell structure. Over 98% of these cells are fully closed, forming a continuous physical barrier against air and water migration.
| Characteristic / Property | Kingflex Rubber Foam Sheet Rolls | Kingflex Rubber Foam Pipes |
|---|---|---|
| Material Composition | Premium NBR/PVC Co-polymer Blend | Premium NBR/PVC Co-polymer Blend |
| Thickness Range | 6mm to 50mm | 9mm to 40mm (ID: 6mm - 114mm) |
| Density | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Thermal Conductivity ($\lambda$) | $\le 0.034$ W/(m·K) at 0°C | $\le 0.034$ W/(m·K) at 0°C |
| Water Vapor Diffusion ($\mu$) | $\ge 10,000$ | $\ge 10,000$ |
| Service Temperature Range | -40°C to +105°C | -40°C to +105°C |
| Compression Resilience | $\ge 80\%$ recovery | $\ge 80\%$ recovery |
| Fire Performance | Class 0 & Class 1 (BS 476), EN 13501-1 (B-s3, d0) | Flame retardant, self-extinguishing |
Maintains low thermal conductivity ($\le 0.034$ W/m·K) even under severe ambient temperatures, significantly reducing energy consumption in Luxembourg's commercial HVAC installations.
Closed-cell structure blocks humidity, eliminating the risk of mold growth, thermal bridging, and pipe corrosion under insulation (CUI).
With static compression resilience exceeding 80%, Kingflex rolls absorb structural vibrations and resist physical deformation during logistics and pipeline shifts.
Real-world applications of Kingflex elastomeric systems across critical infrastructure and commercial hubs in the Grand Duchy.
Application: Chilled water distribution systems & air handling unit (AHU) connections.
Challenge: Controlling condensation and reducing system noise levels in open-plan office layouts.
Solution: Kingflex Class 0 self-adhesive sheet rolls and pre-slit pipes were installed to deliver long-term thermal resistance and sound absorption, meeting local eco-certification standards.
Application: Low-temperature laboratory piping insulation.
Challenge: Extreme thermal shock risks and localized frost formation on pipelines.
Solution: Deployment of Kingflex Cryogenic Temperature Insulation Rubber Foam, maintaining flexibility down to cryogenic ranges, preventing line cracking and preserving precision temperatures.
Application: Heavy-duty cooling ducts and glycol refrigeration lines.
Challenge: High ambient humidity during shipping bay operations causing condensate drips.
Solution: Implementation of NBR/PVC elastomeric foam sheet rolls featuring factory-applied heavy aluminum cladding to ensure mechanical protection and vapor tightness.
Application: Chilled water line insulation for Tier IV server rooms.
Challenge: Strict carbon footprint limitations demanding insulation with low global warming potential.
Solution: Certified halogen-free, fiber-free Kingflex elastomeric foam sheets, maximizing building energy rating (PEB) metrics while preventing particle shedding.




At Kingflex, chemical formulation accuracy is audited at every stage of the production process. Our laboratories monitor cell size distribution, thermal conductivity variables, and flame retardancy behavior under simulated conditions. This focus on consistency ensures every shipment complies with key European standards.
Our solutions hold globally recognized certificates, including CE, REACH, RoHS, UL94, BS 476 (Class 0 and Class 1), and ASTM. We prioritize material traceability, allowing mechanical contractors to verify compound source histories for high-security public projects, such as school facilities, medical complexes, and airport terminals throughout Europe.






Our team works closely with engineering partners to provide technical assistance, thermodynamic calculations, and delivery coordination. By aligning with architects during the planning phases of major commercial developments in Luxembourg, we ensure exact material thicknesses are specified to meet condensation-control targets.
With eight full-time engineers in our R&D center, six international logistics coordinators, and over 200 skilled factory operators, we scale production outputs to align with project schedules. This setup minimizes site-staging delays and reduces warehouse overheads.





A look at professional mechanical insulation projects utilizing Kingflex NBR/PVC elastomeric rubber foam sheets.












As the European Union moves toward carbon neutrality by 2050, building insulation design must evolve. Mechanical insulation is no longer just a passive material choice; it is now a critical component of active carbon reduction strategies. Kingflex is currently steering its product development toward three key technological milestones:
By specifying Kingflex systems, engineering consultancies ensure their pipeline networks comply with future European ecodesign requirements.
Our range of flexible insulation pipes, corrosion-resistant tube systems, and specialized cryogenic materials designed for precise temperature control.

Provides thermal stabilization and condensation protection for mechanical piping networks.

Treated with corrosion inhibitors to prevent water damage and Pipe Corrosion Under Insulation (CUI).

Highly flexible, allowing for easy installation around tight pipeline joints and bends.

Ideal for HVAC and plumbing applications, offering reliable thermal management.

Protects cooling and heating distribution lines from ambient thermal losses.

Designed to meet building safety standards for commercial high-rise ventilation networks.

A complete insulation solution designed for underground distribution and utility systems.

Specialized material formulated for extreme low-temperature and gas processing setups.

Maintains flexibility and prevents fracturing in cryogenic processing plants.

Engineered for gas liquefaction plants and industrial cryogenic chemical lines.

High-density mineral wool panels providing fire protection for structural applications.

Provides thermal stabilization and high-temperature fire stops for industrial ovens.
Get professional answers about the performance, applications, and selection of elastomeric rubber foam insulation.
Our primary commercial product selection for bulk wholesale supply. Available with complete documentation and competitive quotation structures.
Standard density rolls designed for easy cutting and fitting around complex equipment surfaces.
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High-grade elastomeric insulation sheet built for demanding industrial environments.
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Durable NBR/PVC blend sheets offering chemical resistance and physical durability.
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Optimized for large central AC ductwork, reducing thermal losses and system noise.
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Standard closed-cell elastomeric foam sheets for mechanical system insulation.
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High-flexibility NBR rolls designed for insulating large-diameter pipelines.
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Features a pressure-sensitive adhesive layer to streamline installation on flat surfaces.
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Color-coded rolls for easy identification of system lines (e.g., supply vs. return).
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