Kingflex
High-specification elastomeric and cryogenic thermal barriers designed for the Grand Duchy's smart buildings, data centers, and advanced manufacturing sectors.
Luxembourg is positioning itself as a central hub for eco-responsible construction and circular economy models across Western Europe. With the grand-ducal regulation aligning tightly with European Union green taxonomy rules, traditional halogenated insulation products (which contain bromine, chlorine, or fluorine) are rapidly being decommissioned in favor of Low Smoke Zero Halogen (LSZH) alternatives.
In high-density commercial developments, public structures, and premium industrial campuses in areas like Kirchberg, Belval, and Contern, smoke toxicity is now recognized as a critical hazard. During fire emergencies, standard halogenated insulation releases dense smoke and highly corrosive acid fumes (such as hydrochloric or hydrobromic acid), which compromise human lungs and damage sensitive financial servers and precision industrial electronics.
Our Halogen-Free Elastomeric Rubber Foam Insulation solves this crucial safety challenge. Engineered specifically for high-spec engineering requirements, this thermal insulation combines a thermal conductivity rating of λ ≤ 0.034 W/(m·K) with class-leading smoke safety classification, ensuring compliance with strict EN 13501-1 Euroclass building codes.
Our R&D division has successfully optimized a non-hazardous flame-retardant matrix. By utilizing high-purity inorganic phosphorus and metal hydroxides (such as Aluminum Trihydroxide - ATH), our halogen-free rubber insulation triggers a gas-phase flame inhibition and condensed-phase endothermic cooling process without producing toxic smoke.
The resulting closed-cell structure operates continuously within a temperature spectrum ranging from -40°C up to +105°C (and down to -200°C for specialized cryogenic applications). This ensures that condensate formation on cold-water supply or chilled HVAC loops is permanently eliminated while saving energy costs.
| Physical Property | Halogen-Free Elastomeric Foam | Standard NBR/PVC Rubber Foam |
|---|---|---|
| Halogen Content (Cl, Br, F) | < 50 ppm (Halogen-Free Compliance) | High concentrations (Halogenated) |
| Thermal Conductivity (λ at 0°C) | ≤ 0.034 W/(m·K) | ≤ 0.033 W/(m·K) |
| Water Vapor Diffusion (μ-value) | ≥ 10,000 (Closed-cell system) | ≥ 7,000 |
| Acid Gas Toxicity Index | Zero corrosive gases emitted | Highly corrosive HCl/HBr released |
| Working Temp Range | -200°C to +105°C (System dependent) | -50°C to +105°C |
Engineered thermal systems answering the specific needs of modern European infrastructure, logistics, and data hubs.
Protect valuable computing assets in Luxembourg's growing Tier-IV data centers. Our LSZH insulation limits the risk of electrical corrosion by preventing acid gas emissions during fire events, protecting millions of euros in microchip infrastructure.
Designed for large office complexes in Kirchberg and Belval. Easily achieves maximum points under BREEAM's indoor air quality and acoustic insulation credits while adhering strictly to regional fire codes.
For chemical facilities, pharmaceutical cold rooms, and clean manufacturing sites. Provides continuous protection against moisture ingress and cryogenic thermal shock down to -200°C.
Kingflex Insulation Co., Ltd. operates a world-class manufacturing complex in Dacheng, China, the global heartland of premium green building materials. Through years of strategic upgrades, our facility has evolved into an Industry 4.0 smart factory, integrating automated extrusion line controls with real-time temperature, density, and cell-size profiling.
This allows us to maintain consistent micro-cell sizing, maximizing the resistance to thermal transfer while preserving high flexibility. For our business partners in Luxembourg, our large-scale output translates to short lead times, optimized shipping costs, and a highly competitive cost-to-performance ratio that smaller European factories cannot replicate.
How our scale and specialized capabilities bring value to your supply chain.
We recognize that product compliance is crucial for European procurement managers. Our halogen-free and cryogenic foam products undergo strict third-party audit regimes, meeting the strict performance requirements set by global safety and environmental certifiers.
Whether you require standard HVAC tube geometries or complex elastomeric cryogenic wraps for liquid nitrogen systems, our batch shipments come complete with technical documentation, declarations of conformity, and traceability data.
Our service extends beyond the factory gate. The Kingflex international customer success team consists of 8 R&D application engineers and 6 dedicated export specialists. We provide project managers in Luxembourg with calculation support, including wall thickness sizing to prevent condensation under specific relative humidity levels, acoustic vibration studies, and installation guidelines.
From initial thermal modeling to post-sale support, we work with mechanical engineers, MEP contractors, and material distributors to ensure our halogen-free systems are installed correctly and perform reliably for decades.
Flexible options designed to cover complex system geometry, large-scale plant lines, and commercial ventilation networks.
Designed for ducts, large tanks, complex flanges, and broad flat surfaces. Highly flexible, easy to cut, and provides excellent acoustic decoupling.
| Material Class | Premium NBR/PVC elastomer compound |
| Thickness Options | 6mm to 50mm continuous extrusion |
| Density Range | 40 to 55 kg/m³ for optimal flexibility and durability |
| Service Temperatures | -40℃ to 105℃ continuous operation |
| Key Features | Closed-cell rate ≥ 98%, high vapor barrier resistance |
Slit or unslit designs for copper chilled-water lines, hydronic heating loops, and clean industrial process lines. Easily slips onto structural pipework.
| Material Class | Flexible NBR/PVC elastomer composite |
| Thickness Options | 9mm to 40mm thickness ranges |
| Inner Diameters (ID) | 6mm to 114mm for standard copper and steel pipes |
| Resilience Index | Compression recovery rate ≥ 80% |
| Key Features | Anti-condensation barrier, prevents pipe freezing & cracking |
Explore our full catalog of specialized sound barriers, thermal sleeves, and extreme low-temperature protection systems.
Technical clarifications concerning materials science, fire classifications, and global purchasing coordination.
Contact our engineering support desk today to discuss technical parameters, request physical product samples, and secure competitive volume pricing direct from our state-of-the-art production facility.
