Kingflex
High-Performance Closed-Cell Elastomeric Thermal Insulation & Energy-Saving HVAC System Solutions
Premium NBR/PVC closed-cell elastomeric rubber foam sheets and tube systems optimized for thermal efficiency.
Flexible elastomeric NBR foam insulation rolls designed for high-humidity environments and large air duct systems across Berlin-Brandenburg commercial constructions.
Industrial-grade rubber foam insulation pipes engineered to minimize heat losses in district heating distribution systems and HVAC plumbing installations.
Top-tier high-performance rubber foam insulation sheets offering exceptional thermal resistance and mechanical strength for industrial applications.
Aluminum foil laminated rubber plastic sheets offering supreme vapor barrier integration and enhanced physical protection against UV and mechanical tearing.
As Germany charges forward with its ambitious climate protection targets, the Berlin metropolitan area is implementing rigorous thermal efficiency criteria under the Gebäudeenergiegesetz (GEG) (German Building Energy Act). The local commercial construction sector, data center developments in Berlin-Spandau, and complex district heating (Fernwärme) networks demand highly specialized thermal insulation systems. Minimizing thermal dissipation and stopping condensation are top operational goals.
Flexible closed-cell elastomeric rubber foam sheets (NBR/PVC) have become the default choice for modern design engineers in Berlin. These materials are heavily specified in ventilation ductwork, chiller systems, and sanitary pipelines. Unlike conventional mineral wool, which is susceptible to moisture ingress and subsequent mold growth, the closed-cell matrix of NBR foam prevents moisture permeability. This guarantees long-term thermal performance (λ ≤ 0.033 W/m·K) and safeguards indoor air quality across commercial buildings, hospitals, and cleanrooms.
For large-scale contractors in Germany, securing a reliable supply chain for direct-from-manufacturer elastomeric materials translates into substantial cost savings. By combining China's manufacturing capacity with strict compliance to DIN standards and CE marking, Kingflex delivers German-market-ready insulation materials directly to job sites in Berlin, Potsdam, and Brandenburg.
Kingflex Insulation Co., Ltd. is a globally recognized manufacturing and trading consortium specializing in high-performance thermal insulation solutions. Our research, development, and advanced manufacturing divisions are situated in Dacheng, China—a region internationally renowned as the capital of energy-efficient and green building materials. Our mission is built around environmental sustainability, energy recovery, and systemic loss prevention.
Our parent entity, the Jinwei Group, was established in 1979 and possesses over 40 years of pioneering history in polymer and thermal insulation technologies. As the first major manufacturer of thermal insulation materials north of the Yangtze River, the group has consistently pushed the boundaries of manufacturing technology. Today, Kingflex maintains 5 large-scale automated assembly lines, serving as a key qualified supplier to state energy, electricity, and chemical departments globally.
With an export history spanning 16 years, our dedicated teams—consisting of 8 senior R&D engineers, 6 international customer managers, and 230 skilled production technicians—guarantee that every shipment meets the exact specifications required by European construction standards.
Innovation is at the core of our manufacturing processes. At the Kingflex laboratory facilities, we perform rigorous tests to examine thermal conductivity deterioration, fire propagation, moisture transmission index (μ-value), and mechanical flexibility. Our constant R&D investments focus on developing high-density NBR/PVC matrices that deliver superior performance at ultra-low (cryogenic) temperatures as well as standard HVAC levels.
Engineered to conform with European standards (EN 14304) for flexible elastomeric foams.
| Technical Characteristic | Standard Reference | Performance Index / Value |
|---|---|---|
| Material Composition | - | Elastomeric Nitrile Rubber & Polyvinyl Chloride (NBR/PVC) blend |
| Thermal Conductivity (λ) | EN ISO 13787 / ASTM C518 | ≤ 0.033 W/(m·K) at 0°C, ≤ 0.035 W/(m·K) at 20°C |
| Water Vapor Permeability Resistance (μ) | EN 12086 / DIN 52615 | μ ≥ 10,000 (Closed-cell barrier prevents moisture accumulation) |
| Fire Safety Rating | EN 13501-1 / UL 94 | Class B-s3, d0 / Class V-0 (Self-extinguishing, no flaming droplets) |
| Service Temperature Limits | EN 14706 / EN 14707 | -40 °C to +105 °C (Special cryogenic formulations down to -200 °C) |
| Density Profile | ASTM D1622 | 40 kg/m³ to 55 kg/m³ (Optimized cell structure) |
| Environmental Properties | REACH / RoHS / EPA | Zero CFCs, HFCs, or HCFCs; Zero formaldehydes or VOCs |
How our elastomeric products solve critical thermal insulation challenges in Berlin's modern infrastructure projects.
High-density data centers located around Spandau and Tempelhof rely on closed-cell rubber sheet insulation to prevent condensation on chilled water lines and cooling ducts, improving Power Usage Effectiveness (PUE).
Hospital extensions, like the Charité campus, require fiber-free insulation. Kingflex elastomeric foam does not release particulates or support microbial growth, ensuring optimal indoor hygiene.
Refurbishments of historic Berlin apartments and municipal offices require thin, high-performance insulation to fit within tight crawl spaces while satisfying German building energy laws.
From heavy industry to commercial structures, our products are installed in environments demanding absolute reliability.
Uncompromising focus on transparency, product traceability, and professional business support.
Tested and verified by global classification laboratories to ensure full code compliance.
ISO 9001 Quality System
CE Compliance Certificate
EN 13501 Fire Standard
RoHS Environmental Proof
Bridging industrial manufacturing scale with strict European specifications and direct-to-site supply chain management.
Eliminate local broker markups. We supply wholesale quantities directly from our 5 automatic extrusion lines, ensuring optimal material costs for major projects.
Enjoy seamless customs handling and container shipping options to major transport hubs in Germany, including Berlin dry ports and Hamburg sea terminals.
Every production batch is tested against EN standards, certified for flame retardancy, and registered under European environmental regulations (REACH/RoHS).
Select the ideal insulation system for your commercial, mechanical, or industrial projects.
Designed for ultra-low temperature scientific chambers and industrial refrigeration plants requiring stable thermal resistance down to -200°C.
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Highly flexible elastomeric sheet insulation ideal for wrapping large air ducts, complex fittings, and large-diameter process pipes.
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Continuous roll format designed to minimize joints and labor costs during large commercial mechanical insulation installations.
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Specialized thick-walled pipe insulation wraps designed specifically to insulate LNG and chemical pipelines operating at extreme temperatures.
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A highly versatile elastomeric solution designed for systems that cycle between extreme freezing conditions and high steam sterilization temperatures.
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Ultra-flexible cryogenic sheeting that enables tight wraps around complex valves, manifolds, and chemical storage reservoirs.
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Essential installation accessory featuring specialized acrylic adhesives, designed to deliver vapor-tight seals on foil-faced insulation boards.
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Standard density, high-reliability NBR flat sheets. Perfect for mechanical soundproofing and vibration decoupling applications in building hulls.
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Specially formulated lightweight sheets providing optimal thermal resistance for wall, ceiling cavity, and weight-sensitive acoustic panel systems.
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Pre-applied high-performance adhesive backing drastically reduces on-site labor and adhesive usage during installation phases.
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Engineered for extreme moisture exposure. Delivers reliable performance in outdoor pipelines and heavy washdown areas without additional covers.
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Designed specifically to meet the strict thermal demands of cryogenic gas piping and biochemical processing systems.
View SpecificationsClear technical answers to help engineering, procurement, and project management professionals make informed choices.
Closed-cell elastomeric rubber foam offers exceptional resistance to water vapor transmission (μ ≥ 10,000) and low thermal conductivity (λ ≤ 0.033 W/m·K at 0°C). In Berlin's climate, where temperature and humidity vary, these characteristics prevent condensation and moisture collection in ventilation ducts and chilled water pipes. This protects systems from corrosion under insulation (CUI) and maintains energy efficiency over time, complying with Germany's Gebäudeenergiegesetz (GEG) standards.
Kingflex rubber foam insulation is formulated with advanced fire retardants that meet strict European safety standards. Our products have achieved fire safety classifications up to EN 13501-1 Class B-s3, d0. This classification verifies that our insulation is self-extinguishing and does not create flaming droplets, making it fully compliant for installation in public structures, data centers, and multi-family residences throughout Germany.
Elastomeric rubber foam is flexible, closed-cell, and highly moisture-resistant. This makes it ideal for cold lines, air conditioning ducts, and plumbing systems where moisture control is crucial. Rock wool is a fibrous material with high temperature resistance, making it suitable for high-temperature steam lines and specialized fire barriers. Unlike rock wool, elastomeric foam does not require an external vapor barrier jacket to maintain its thermal properties in cold and damp environments.
Yes. We provide complete OEM and customization services at our manufacturing plant. We can supply rubber foam sheets with pre-applied, high-adhesion self-adhesive backing to streamline installation. Additionally, we offer laminations with reinforced aluminum foil to provide extra UV protection, mechanical strength, and enhanced vapor resistance for outdoor or demanding environments.
Our manufacturing and quality assurance systems are certified under ISO 9001. Our product range has been tested and certified to comply with CE, REACH, RoHS, UL 94, ASTM, and BS 476. These certifications ensure that our products meet the technical and safety standards required for distribution and installation in major international markets, including the European Union.
Yes, quality control is maintained throughout our entire manufacturing process. Each production batch undergoes testing for density, thermal performance, and dimensional accuracy. Traceability codes are printed on our packaging, allowing us to track each batch back to its raw material source and production line. This ensures complete transparency and accountability for our clients in Berlin and other global markets.
Under recommended operating temperatures (-40°C to +105°C) and correct installation, our rubber foam sheets and tubes have a service life of 10 to 15 years. The closed-cell structure prevents moisture accumulation, protecting the material from structural degradation and maintaining consistent thermal performance over the long term.
Direct shipments from our factory in China are organized via containerized shipping lines to major German ports, such as Hamburg, followed by inland rail or truck transport to Berlin. The typical ocean transit time ranges from 30 to 40 days. We also offer air freight and express shipping for urgent components, project accessories, or specialized sample orders.
Contact our technical team to request a customized quote, arrange product samples, or discuss custom sheet sizes for your next major installation in Berlin.