Kingflex
Kingflex
Browse our comprehensive engineering inventory, featuring elastomeric foams, high-temperature glass wools, and specialty reflective vapor barriers designed to reduce energy consumption in commercial and industrial settings.
Glass wool insulation felt laminated with a reflective aluminum foil on one side is an essential component for thermal management in modern buildings and industrial facilities. The core glass wool is formed from molten glass fibers bonded using thermosetting resins, producing a porous, elastic blanket. This porous structure traps millions of micro air pockets, limiting convective thermal transfer and reducing overall thermal conductivity.
The one-sided aluminum foil lamination serves two key purposes: it acts as a vapor barrier and reflects radiant heat. By stopping water vapor from moving through the material, it prevents condensation inside the insulation core, protecting the glass wool's thermal efficiency over time and preventing structural issues like mold growth and corrosion under insulation (CUI).
Automated glass wool processing highlighting precise fiber matrix creation.
Our manufacturing processes align with ASTM, CE, and GB standards. This table highlights the performance indicators of our aluminum foil-faced glass wool felt solutions.
| Performance Indicator | Standard Reference | Specified Parameter Value | System Benefit |
|---|---|---|---|
| Nominal Density Range | ASTM C553 / GB/T 13350 | 10 kg/m³ to 48 kg/m³ | Ensures mechanical stability and target thermal resistance. |
| Thermal Conductivity (λ) | ASTM C518 / ISO 8301 | ≤ 0.034 W/(m·K) at 25°C | Minimizes heat exchange for optimal energy conservation. |
| Combustibility Rating | BS 476 Part 4 / EN 13501-1 | Class A1 / Class O (Non-Combustible) | Ensures high-level safety and compliance with building codes. |
| Water Vapor Permeability | ASTM E96 | ≤ 0.015 g/(m²·24h·pa) (Foil Side) | Impedes interstitial condensation, protecting structural integrity. |
| Service Temperature Limit | ASTM C411 | -120°C to 400°C (Core Fibers) | Suits cold piping up to medium-temperature steam lines. |
| Hydrophobic Rate | GB/T 10299 | ≥ 98% | Maintains insulation performance even when exposed to water. |
| Foil Peeling Strength | ASTM C1136 | ≥ 3.0 N/cm | Prevents facing delamination during shipping and installation. |
Kingflex Insulation Co., Ltd. is an integrated manufacturer and trader specializing in thermal insulation materials. Our research, development, and primary production facilities are situated in Dacheng, China, a major hub for green building material manufacturing. By prioritizing energy efficiency, Kingflex research and development is geared toward high-performance, eco-friendly systems.
We provide full-cycle thermal solutions, including consulting, customized product development, installation guidance, and post-sale technical support, helping lead the way in modern green building initiatives.
Founded by the Jinwei Group, which dates back to 1979, Kingflex carries on a 40-year legacy of engineering and manufacturing. As the first thermal insulation manufacturer north of the Yangtze River, our group has helped set the standards for building envelope thermal performance in China.
Our glass wool products are designed to handle demanding industrial and commercial environments, ensuring long-term thermal performance across diverse installations.
External duct insulation wrapped with aluminum foil-faced glass wool helps prevent condensation on supply lines, improves acoustic damping within air shafts, and enhances overall HVAC system efficiency.
Protects medium-temperature steam lines and hot utility systems, minimizing energy losses and preventing burns in work environments.
Meets strict international flame-spread and toxicity standards. Used in ship walls, engine compartments, and structural bulkheads to provide sound dampening and fire protection.
Our glass wool core effectively dissipates sound energy, offering strong noise reduction coefficients (NRC) across key octave bands:
Our manufacturing facility in Dacheng features 5 automated production lines, allowing for continuous fiber drawing, binder spraying, drying oven treatment, and lamination processes. Our automated manufacturing line control stabilizes physical dimensions, controls density variance, and maintains high lamination strength on the reflective foil facings.
Operating with an annual capacity of over 600,000 cubic meters, Kingflex functions as an approved manufacturer for the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry. This strong production network allows us to handle large-scale commercial real estate and industrial facility projects without supply line disruption.
Every production batch undergoes hot box testing and thickness uniformity measurements.
Custom widths, lengths, density configurations, and facing styles are available.
Our products are tested and certified to comply with strict global safety, structural, and environmental regulations.
ISO9001 Management
European CE Approved
RoHS & REACH Compliant
BS 476 Fire Class O
With active distribution networks in more than 66 countries, Kingflex supports projects across the Americas, Europe, the Middle East, and Southeast Asia. We supply comprehensive documentation, including material test reports (MTR), safety data sheets (SDS), and custom clearance certificates, helping to streamline international customs and compliance checks.
Our dedicated technical department features 8 specialized R&D engineers who focus on structural thermal research, binder chemistry, and vapor seal technology. By utilizing test chambers that simulate high humidity and thermal cycling, we optimize the performance of our aluminum foil laminates to prevent facing separation.
We prioritize product traceability. Every shipment carries QR-coded tags linking directly to raw material test files, chemistry parameters, and quality assurance logs.
A1: The aluminum foil facing acts as a highly effective vapor barrier, preventing moisture from entering and condensing inside the glass wool core. This moisture protection preserves the material's thermal properties, prevents structural damage, and reflects radiant heat for improved energy efficiency.
A2: When installed correctly and protected from direct physical damage, our glass wool felt can last 15 to 20 years or more. The high peeling strength of the aluminum foil facing ensures it remains securely bonded over the long term.
A3: Glass wool is highly non-combustible and can handle higher service temperatures (up to 400°C), making it ideal for high-temp industrial pipes and standard commercial HVAC ducts. Rubber foam is a flexible, closed-cell material that offers excellent moisture resistance, making it suitable for chilled-water HVAC and low-temperature refrigeration systems.
A4: Yes, we provide full custom services. We can supply densities ranging from 10 kg/m³ to 48 kg/m³, thicknesses from 25mm to 150mm, and custom roll widths and lengths to meet specific project needs.
A5: Our glass wool insulation complies with international standards, holding BS 476 Class 0, European CE A1, and UL 94 fire ratings, ensuring safe installation in municipal and industrial structures.
A6: Our standard production and shipping dispatch time is 10 to 15 business days after order confirmation, depending on order size and customization requirements.
A7: Yes, our technical department provides complete installation manuals, instructional videos, and remote technical support. For large-scale projects, we can arrange for engineering supervisors to assist on-site.
