Kingflex
Premium selection of thermal and acoustic insulation rolls tailored for rapid deployment across Swiss canton-level municipal projects.
Switzerland’s path toward a carbon-neutral building stock by 2050 enforces stringent thermal loss thresholds. Under the SIA 380/1 standard ("Thermal Energy in Buildings") and cantonal harmonized regulations (MuKEn 2014), the selection of insulation materials must address thermal conductivity, acoustic absorption, and strict fire safety metrics.
Kingflex elastomeric rubber foam rolls deliver a thermal conductivity of λ ≤ 0.033 W/(m·K) at 0 °C. This exceptional value ensures that minimum insulation thicknesses satisfy municipal structural permits while preserving valuable interior workspace in Swiss urban redevelopment zones like Zurich, Geneva, and Lausanne.
From Alpine cold storage facilities to Basel’s pharmaceutical cleanrooms, Kingflex provides application-specific material density and flame-retardant performance.
Our NBR/PVC closed-cell matrix prevents particulate shedding and biological colonization, vital for strict sterile air corridors. Chemically stable against rigorous CIP cleaning agents.
Constant air flow refrigeration demands massive chilled-water loops. Self-adhesive aluminum-foil laminated options eliminate the risk of surface condensation and protect delicate server infrastructure.
Designed to withstand severe thermal expansion cycles in Swiss sub-zero environments, guaranteeing reliable transport of heat energy or cryogenic fluids with minimal temperature drop.
A technical assessment of elastomeric rubber foam against historical insulation methods evaluated under European standards.
| Performance Characteristic | Kingflex Rubber Foam Sheet | Glass Wool Insulation | PIR Rigid Board | Swiss Regulatory Mandate (EN 13501) |
|---|---|---|---|---|
| Thermal Conductivity (0 °C) | ≤ 0.033 W/(m·K) | ~ 0.038 W/(m·K) | ~ 0.024 W/(m·K) | Optimal for thermal envelope efficiency |
| Vapor Barrier Property (μ-value) | ≥ 10,000 (Built-in) | ~ 1 (Requires outer foil) | ~ 150 | Critical for sub-cooling preventions |
| Fire Classification (EN 13501-1) | Class B-s2, d0 (Flame retardant) | Class A1 (Non-combustible) | Class E (Varies by composite) | High occupancy public venue ready |
| Elasticity & Installation | Excellent, highly flexible | Brittle, releases microfibers | Rigid, must be cut to spec | Complex architectural layout friendly |
| Service Temperature Range | -40 °C to +105 °C | Up to +400 °C | -150 °C to +120 °C | Cryogenic to standard distribution |
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in a well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales.
In operation, Kingflex takes energy saving and consumption reduction as the core concept. We provide the solutions regarding insulation by means of consultation, research and development, production, installation guidance, and post-sale service to lead the development of the global building materials industry.
Kingflex is established by the Jinwei Group, which has more than a 40-year history. Jinwei Group, established in 1979, was the first manufacturer of thermal insulation materials north of the Yangtze River. This rich heritage guarantees reliability and consistency in supply chains.
Our employees are amazing in their own right, but together they are what makes Kingflex such a fun and rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service to our clients. Kingflex has eight professional engineers in the R&D Department, 6 professional international sales, and 230 workers in the production department.
Our R&D team focuses on formulating low-density closed-cell elastomers that maintain thermal efficiency across broad temperature gradients. By applying modern automated vertical foaming processes, we ensure that every batch of material features cell sizes between 40-70 microns, minimizing internal radiative heat transfer.
Kingflex ensures seamless integration into Swiss building codes by maintaining a rigorous portfolio of third-party test reports and certifications.
Fire tests on building materials & structures.
Conformity declaration for EU/EFTA entry.
Tests for flammability of plastic materials.
Traceable, process-driven production lines.
Additional testing protocols: ROHS, ASTM C534, FM Approvals, and VOC outgassing tests under EMICODE levels are available upon official request from engineering offices.
See how Kingflex closed-cell rubber insulation systems perform under the thermal demands of Switzerland's industrial landscapes.
Application of 32mm thick self-adhesive elastomeric sheets to prevent condensation on major supply-air distribution plenums.
High-density cryogenic insulation applied to ultra-low temperature process lines operating at constant temperatures below -30°C.
Thermal insulation wraps for valves and primary distribution bypass networks, maintaining thermal envelope efficiency.
Duct lining for quiet acoustic operations in laboratory clean environments, minimizing sound reverberations in ceiling cavities.
Each sheet roll and elastomeric tube is extruded under strict density controls, ensuring consistency in thermal insulation performance across the entire surface.
Material Specifications:
Material Matrix: Elastomeric NBR/PVC blend
Thickness Range: 6mm to 50mm
Material Density: 40-55 kg/m³
Service Temperature limits: -40 ℃ to +105 ℃
We maintain transparent processes with major mechanical, electrical, and plumbing engineering firms in Zurich and Lugano. Below are verified records demonstrating project alignment, design phase clearances, and technical approvals for large-scale operations.
Kingflex offers fully integrated insulation systems designed for commercial and industrial buildings. Our logistics team handles Swiss custom clearances and ensures deliveries comply with regional distribution requirements across Geneva, Basel, and Zurich.
Explore our full line of elastomeric closed-cell insulation materials, designed for applications from cryogenic environments to HVAC systems.
Specialized products designed to meet specific engineering challenges, including thermal insulation tubes, corrosion-resistant jackets, and rock wool options.












In-depth responses regarding thermal calculations, Swiss safety norms, and project design parameters.
A1: It is primarily specified for HVAC systems, cold storage facilities, process pipework in chemical plants, and municipal water distributions. The closed-cell structure prevents condensation on cold surfaces and reduces thermal losses in hot water networks.
A2: Yes. Kingflex rubber foam insulation is formulated with built-in flame retardants. It meets the requirements of BS 476 and holds a Class B-s2, d0 rating under EN 13501-1, ensuring low smoke density and no flaming droplets.
A3: Rubber foam features a closed-cell structure with an integrated vapor barrier (μ ≥ 10,000), making it ideal for refrigeration, HVAC, and condensation control. Rock wool is a fibrous, open-celled material suited for high-temperature applications (>150 °C) and acoustic assemblies requiring Class A1 fire protection.
A4: Yes, we support OEM/ODM services. We can customize density, wall thickness, inner diameters for pipe tubes, and provide self-adhesive backings or protective foil laminates to meet specific project guidelines.
A5: Our products have passed BS 476, CE, REACH, ROHS, UL94, and ASTM testing standards. This ensures compliance with Swiss and European safety and ecological regulations, including Minergie-ECO requirements.
A6: Yes, each batch is assigned a unique tracking code indicating the raw material lot, production line number, and QC release stamp, supporting full material traceability.
A7: We produce sheet rolls in thicknesses ranging from 6mm to 50mm, allowing designs to meet exact thermal path requirements.
A8: Under standard operational conditions (-40 °C to +105 °C) and with proper installation, Kingflex materials provide a service life of 10 to 15 years, maintaining stable thermal conductivity.
Contact our technical support desk to receive detailed material data sheets, physical samples, and pricing for container-level shipments destined for EFTA distribution hubs.
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