Kingflex
High-performance elastomeric thermal and acoustic materials optimized for North Vietnam’s high-humidity infrastructure projects.
Premium grade closed-cell rolls engineered specifically to handle the sub-tropical moisture barriers of modern high-rise ductings.
Industrial-grade tubing for cold piping system insulation, boasting low thermal conductivity and long-term anti-condensation performance.
Open-cell & closed-cell hybrid insulation sheets for acoustic decoupling and structural dampening in high-traffic commercial spaces.
Highly flexible NBR/PVC compound sheet roll offering superior flame resistance and low vapor transmission ratings.
The construction landscape of Hanoi and its suburban industrial hubs (such as Hoa Lac Hi-Tech Park, Thang Long Industrial Park, and VSIP Bac Ninh/Hung Yen) has seen unprecedented growth over the last decade. As high-value semiconductor fabrication plants, pharmaceutical manufacturing facilities, and high-density residential towers emerge, they present highly demanding structural engineering conditions.
The Climatic Imperative: Hanoi exhibits a sub-tropical climate characterized by extreme humidity (often exceeding 85% relative humidity) and sharp seasonal temperature variances. In such environments, traditional insulation systems like fiberglass or rock wool are highly prone to moisture absorption, leading to thermal bridging, mold propagation, and drastic energy losses in chilled-water piping and HVAC systems.
This is why local engineers, mechanical consultants, and global project specifiers are shifting to high-density, closed-cell elastomeric rubber foam insulation. Closed-cell rubber foam does not rely on an external vapor barrier alone; its molecular structure inherently acts as a continuous water vapor barrier, ensuring structural longevity and stable thermal performance under Hanoi's relentless humidity.
Under the hood of Kingflex's NBR/PVC molecular engineering, built to survive the harshest thermal transitions.
Kingflex rubber foam insulation operates at a highly optimized thermal conductivity level (λ ≤ 0.034 W/m·K at 0°C). This ensures minimal temperature losses across chilled water lines, reducing overall HVAC system operating costs by up to 28%.
Boasting a moisture resistance factor (μ) ≥ 10,000, our closed-cell structure prevents dew-point condensation. This design effectively eradicates corrosion under insulation (CUI), a major threat to steel piping in Hanoi.
Fully compliant with BS 476 Part 7 Class 1 and Class 0 certification, along with UL94 V-0 flame-retardant standards. Self-extinguishing material behavior ensures safety in crowded municipal buildings.
| Physical Parameter | Kingflex Standard Spec | Test Standard Reference | Hanoi Project Performance Advantage |
|---|---|---|---|
| Density Range | 40 - 55 kg/m³ | ASTM D1622 | Optimal tensile strength & installation flexibility |
| Thermal Conductivity | ≤ 0.034 W/(m·K) at 0°C | ASTM C518 / ISO 8301 | High energy conservation in variable weather patterns |
| Water Vapor Permeability | ≤ 1.96 × 10⁻¹¹ g/(Pa·m·s) | ASTM E96 | Eliminates humidity ingress without additional vapor foils |
| Fire Safety Rating | Class 0 / Class 1 / V-0 | BS 476 Part 6/7 / UL94 | Self-extinguishing, non-dripping for high-density sectors |
| Service Temperature Range | -40°C to 105°C | ASTM C411 | Perfect for VRF air conditioners and refrigeration piping |
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex's research development and production department is located in the 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 its core concept. We provide 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 40 years of history. Jinwei Group was established in 1979 and was the first manufacturer of thermal insulation materials north of the Yangtze River. Today, this legacy translate into high-level material production capable of fulfilling mass commercial demands in the Hanoi district.
Talk to Our Technical SalesAt present, Kingflex runs 5 large automatic assembly lines with an annual production capacity exceeding 600,000 cubic meters. This heavy production capability makes us a designated manufacturing enterprise selected by ministries of energy, electric power, and chemical industry infrastructure.
Our employees are amazing in their own right, but together they are what makes Kingflex such a rewarding and professional place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service to our global clients. Kingflex employs 8 professional engineers in the R&D Department, 6 professional international sales specialists, and 230 experienced workers in our production department.
This human capital and testing lab infrastructure ensure every batch of NBR/PVC elastomeric foam arriving at Hanoi projects (whether in rolls, tubes, or sheets) complies strictly with design criteria and batch-to-batch consistency requirements.
Total reliability guaranteed. Our rubber foam insulation carries complete traceability and global safety approvals.
Ensuring Project Integrity in Hanoi: Every export batch shipped from our automatic production line contains specialized tracking stamps. This ensures that QA/QC engineers at high-demand sites like the Noi Bai Airport expansion projects or suburban commercial towers can verify the mechanical integrity, density parameters, and flame retardation classes instantly.
Explore real industrial project integrations and direct communications from engineers worldwide.
A visual representation of our elastomeric foam processing lines, technical specs, and installation layouts.
Kingflex Standard Dimension:
Key Advantages: Foams evenly and fully, closed-cell rate over 98%, compression resilience over 80%, flame retardant with low heat transfer index.
Kingflex Standard Dimension:
Key Advantages: High durability spraying coating, excellent flexibility around complex angles, reduces pipe freezing and cracking risks by 95%.
Select from our specialized elastomeric product variations. Optimized for immediate regional dispatch.
Extra-thick 25mm sheet rolls engineered for large-scale central HVAC air handler systems to maximize energy efficiency.
Highly sought-after 19mm standard roll, delivering the ideal balance between installation flexibility and condensation control.
High density thermal insulation sheets, designed to maintain climate limits inside modern green infrastructure projects.
Global grade NBR foam sheeting rolls with excellent flexibility, perfect for large circular duct systems.
High mechanical damping 6mm flexible soundproofing sheet roll for architectural decibel drop specifications.
Engineered open-cell structured elastomeric matrix for absorbing noise in office ventilation and mechanical rooms.
Small-bore flexible elastomeric piping jacket, optimized for standard VRF condensate discharge lines.
Heavy-duty 40mm high thermal barrier sheets for low-temperature industrial chilling and cold storage applications.
Thick wall insulation pipe offering deep resistance to heat gain in industrial chilled pipelines.
Advanced refrigeration system protective tubing. Resists atmospheric aging and mechanical wear.
Damping and decoupling pipes designed to isolate mechanical structure-borne noises in drain pipes.
10mm open-cell flexible foam sheeting with high-density acoustic cell formulation for generator enclosures.
Beyond HVAC—solutions engineered for the next wave of industrial modernization.
As Hanoi becomes a hub for high-tech cold storage logistics and chemical processing, standard insulation reaches its limits. Kingflex cryogenic elastomeric systems offer thermal insulation solutions down to -200°C. These specialized multi-layer systems prevent moisture-driven stress and catastrophic line failures in low-temperature pipelines.
Additionally, our product range includes high-durability rock wool products for high-temperature applications. This allows us to supply complete thermal insulation systems, cold insulation systems, and acoustic solutions for modern commercial and industrial projects across Hanoi.
Cryogenic System Sheet
Flexible Cryogenic Roll
Low Temp Rubber Foam
Cryogenic Line Tube
How we support mechanical contractors and developers in the northern Vietnam region.
Enjoy efficient shipping lanes from our production base straight to Haiphong Port, enabling rapid overland transit to project sites in Hanoi. This streamlined logistics route keeps project schedules on track.
From density variations (40-55 kg/m³) to customized wall thicknesses (up to 50mm) and factory-applied adhesive backings, we manufacture to your exact design specifications.
Receive installation guides, structural calculation documentation, and adhesive application advice from our engineering team to ensure high performance on site.
Technical answers regarding elastomeric rubber foam insulation performance in tropical climates.
Partner with a trusted global manufacturer. Get direct factory pricing, certified material quality, and dedicated support for your projects in Hanoi.
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