Kingflex
Optimized for high moisture resistance and thermal reliability in cold-climate building installations.
High-grade roll stock optimized for large ductwork and tanks, providing rapid installation profiles across Swedish industrial zones.
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Engineered thermal insulation pipe tubing with superior flexibility, built to protect domestic water lines and commercial cooling lines.
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Dual-action thermal and sound absorption sheets developed specifically for modern multi-family apartments and green building standards.
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Resilient elastomeric sheet rolls formulated with low thermal conductivity, ideally suited for Scandinavian heavy industry and ventilation casings.
View Details →Decarbonization, Technical Roadmap, and Closed-Cell Insulation Technology in Nordic Environments
Maintains a consistent conductivity rating (λ ≤ 0.034 W/m·K at 0°C), minimizing heat losses under harsh Nordic ambient drops.
An integrated water vapor diffusion factor (μ ≥ 10,000) eliminates the need for separate outer vapor barriers.
Open-cell structure models offer structural sound attenuation, meeting localized construction noise control guidelines.
Sweden represents one of the most demanding markets for high-performance insulation due to its strict compliance frameworks under the Boverket Building Regulations (BBR) and the country's national target to achieve carbon neutrality by 2045. In metropolitan industrial regions such as Gothenburg, Stockholm, and Malmö, climate-resilient civil infrastructure dictates a highly specialized technical approach to thermal insulation. Elastomeric NBR/PVC rubber foam has emerged as the system of choice for modern district heating and cooling distribution systems, industrial manufacturing facilities, and commercial ventilation (HVAC) networks.
Given the typical sub-zero temperatures observed during Nordic winter cycles, condensation prevention on chilled water pipes and air duct systems is critical. Traditional open insulation systems (like rock wool or fiberglass) are prone to moisture ingress, which dramatically accelerates under-insulation corrosion (CUI) and degrades thermal effectiveness. The closed-cell morphology of Kingflex elastomeric insulation provides an impenetrable physical barrier, ensuring that the insulating air bubbles remain dry and operational over decades of thermal cycling.
To help engineers and procurement directors make informed decisions, the table below highlights the performance matrices of NBR/PVC Elastomeric Foam compared to other conventional insulation mediums under cold-climate operating profiles:
| Performance Characteristic | Elastomeric NBR/PVC Rubber Foam | Rock Wool / Mineral Fibers | Polyurethane (PU) Rigid Foam |
|---|---|---|---|
| Thermal Conductivity (λ at 0°C) | ≤ 0.034 W/m·K | 0.038 - 0.045 W/m·K | 0.024 - 0.028 W/m·K |
| Water Vapor Resistance (μ) | ≥ 10,000 (No extra vapor jacket needed) | ~ 1 (Vulnerable to water ingress) | ~ 50 - 150 (Requires vapor jacket) |
| Operating Temp. Range | -50°C to +105°C | Up to +650°C | -150°C to +120°C |
| Flexibility & Ease of Fit | Excellent (Highly flexible, complex shapes) | Poor (Fibers split, requires safety gear) | Rigid (Fitted shells only, labor-intensive) |
| Fire Classification (EN 13501-1) | Class B-s3, d0 / Class 0 (BS 476) | Class A1 / Non-combustible | Class C / D (Combustible) |
For engineering applications in Sweden, Kingflex provides targeted configurations to address local environmental concerns:
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and production departments are located in the well-known capital of green building materials in Dacheng, China. As an energy-saving, environmentally friendly enterprise, we concentrate on advanced research and development, high-capacity production, and global sales.
In our daily operations, Kingflex takes energy saving and emission reduction as its core concept. We provide integrated insulation solutions through consultation, customized research and development, precision production, and professional installation guidance.
Kingflex thermal insulation products are widely used in construction, petroleum, chemical, national defense, aerospace, and other industries. Over the past 16 years, our high-quality materials have been exported to more than 66 countries and regions globally.
The Kingflex team is a tight-knit, talented group with a shared vision of providing consistently first-class service to our international clients. Kingflex employs 8 professional engineers in our R&D department, 6 professional international sales specialists, and 230 workers in our production department.
Established by the Jinwei Group, which possesses more than 40 years of manufacturing history since its founding in 1979, Kingflex stands as the pioneer of high-efficiency thermal insulation materials north of the Yangtze River.
Our Responsibility: We aim to supply customers all over the world with a full set of energy-saving insulation system solutions, acting as an integrated provider of thermal insulation, cold insulation, and noise reduction for buildings and industries.
Our commitment to rigorous European quality standards is demonstrated through our certification portfolio. Our products meet or exceed the following international testing standards:




Tailor-made dimensions configured to match Swedish district energy and plumbing norms.
Primary Application: Thermal insulation for central air conditioning duct systems, ventilation units, and industrial storage tanks. Extremely flexible and resilient to vibration.
Primary Application: Antifreeze and condensation prevention for building plumbing, hot water heating lines, HVAC refrigerant copper pipes, and outdoor district energy pipelines.
Discover our comprehensive collection of specialized elastomeric sheets, rolls, and pre-formed tubes.
25mm thick insulation roll designed for heavy condensation conditions and outdoor HVAC systems in Sweden.
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Highly flexible 19mm insulation sheeting ideal for insulating air ducts, heat pumps, and ventilation enclosures.
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Standard 25mm high-density thermal rubber sheets, providing acoustic dampening and thermal barrier control.
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High performance industrial rolls. Offers long life and high dimensional stability in extreme environments.
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Acoustic treatment 6mm foam sheet designed for tight spaces and underlayment decoupling applications.
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Open-cell sound absorption sheeting developed for plant machinery enclosures and duct soundproofing.
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Micro-diameter 1/4 inch ID tubing designed for split air conditioner refrigerant lines and sensor conduits.
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Ultra-thick 40mm rubber sheets providing extreme heat/cold barrier insulation for critical plant operations.
View Specifications →Ensuring consistent, high-volume deliveries to Stockholm, Gothenburg, and Helsingborg ports.
Geopolitical challenges and fluctuating global shipping rates demand high supply chain predictability. Kingflex mitigates global supply risks through advanced logistics integrations. We maintain strategic warehouses near key Chinese ports, facilitating direct routes to Sweden’s major logistics hub in Gothenburg. By leveraging large-scale shipping partnerships, we offer highly stable container allocations and predictable lead times throughout the year.
Our raw material procurement runs on automated hedging algorithms, ensuring that volatility in chemical polymer prices does not impact contracted customer pricing in Europe. Our Sweden-bound shipments are packed using compression-optimized technology, allowing up to 40% more product volume per 40HQ container, significantly reducing logistics and landing costs for our distributors.
Ensure complete technical coverage across all specialized elastomeric and fiber installations.
Transparent communication, structural test reports, and on-site engineering implementations.








Technical and logistics questions answered by our system specialists.