Kingflex
Explore our core engineering-grade rubber foam products, manufactured under strict quality standards for thermal control, sound absorption, and extreme temperature resilience.
Self-adhering foam tape is a specialized closed-cell elastomeric rubber foam structural component laminated with highly stable pressure-sensitive adhesives (PSA). Used for rapid insulation, joint sealing, and vibration damping, it avoids the mess and hazard of separate adhesive application in HVAC systems, architectural expansion joints, and high-precision electronic damping layouts.
Our self-adhering tape utilizes a balanced Nitrile-Butadiene Rubber and Polyvinyl Chloride (NBR/PVC) polymer base. This blend integrates NBR’s excellent elastic flexibility, low thermal conductivity, and resistance to oils with PVC's exceptional UV resistance and intrinsic flame retardancy, forming a dense micro-cellular matrix that stops water vapor transmission cold.
To ensure global trade compatibility, Kingflex products comply with the highest structural and safety parameters. From UL94 flame classification to ASTM moisture permeability testing, and BS 476 fire resistance ratings, our manufacturing processes are audited annually to verify compliance for international civil construction, oil & gas installations, and defense projects.
In modern industrial applications, the primary function of self-adhering elastomeric foam tape goes beyond simple thermal insulation; it serves as a critical barrier against moisture accumulation, condensation-driven corrosion, and structural vibration transmission. The core performance is dictated by the cell structure: a true closed-cell rating of over 98% locks in stationary micro-pockets of air, reducing convection heat loss and ensuring stable long-term thermal conductivity (λ ≤ 0.035 W/(m·K) at 0°C).
Furthermore, the integration of high-performance pressure-sensitive adhesive (PSA) backings with specialized release liners enables seamless application on structural conduits, cleanroom ducts, and low-temperature piping. This elimination of supplementary liquid glues minimizes the release of Volatile Organic Compounds (VOCs), ensuring compliance with modern green building certifications such as LEED and BREEAM.
Combining over 40 years of industrial expertise with advanced automatic manufacturing lines to supply high-precision insulation worldwide.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for high-performance thermal insulation products. Our state-of-the-art research, development, and primary production department is situated in Dacheng, China—globally recognized as the capital of green-building materials.
As an energy-saving and environmentally friendly enterprise, Kingflex concentrates heavily on R&D, advanced compounding, and global logistics. Operating with a core philosophy of "energy saving and consumption reduction," we deliver comprehensive system solutions covering thermal insulation, cold conservation, and acoustic noise reduction. From project consultation and laboratory compounding to installation guidance and post-sale compliance support, we lead the development of the global industrial insulation sector.
Group Established
Annual Production Capacity
Export Countries Worldwide
Automatic Assembly Lines
Kingflex was established under the strategic auspices of the Jinwei Group, an industrial leader with more than 40 years of continuous history. Established in 1979, the Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. This rich operational lineage ensures Kingflex has access to time-tested metallurgical, polymer, and structural compounding processes, making our technical solutions uniquely reliable and authoritative.
Today, our team forms a tight-knit, talented group focused on giving first-class service to international engineering clients. Kingflex employs 8 professional engineers in our R&D Department, 6 professional international sales coordinators, and over 230 dedicated workers in our manufacturing plant, ensuring consistent quality and responsive service.
A comprehensive breakdown of structural dimensions, physical tolerances, and material compositions of Kingflex products.
To ensure high performance across multiple applications, Kingflex maintains two main formats: Black Rubber Foam Insulation Sheet Rolls and Black Rubber Foam Insulation Pipes. Both formats feature specialized pressure-sensitive self-adhering backings designed to maintain strong adhesion under both freezing and high-heat cycles.
| Performance Metric / Dimension | Black Rubber Foam Insulation Sheet Roll | Black Rubber Foam Insulation Pipe |
|---|---|---|
| Base Material Matrix | NBR/PVC Elastomeric Foam Blend | NBR/PVC Elastomeric Foam Blend |
| Available Thickness Range | 6mm to 50mm | 9mm to 40mm |
| Inner Diameter (ID) Range | N/A (Sheet/Roll form) | 6mm to 114mm |
| Foam Density Range | 40 to 55 kg/m³ | 40 to 55 kg/m³ |
| Operating Temp Range | -40℃ to +105℃ | -40℃ to +105℃ |
| Closed-Cell Rate | Over 98% uniform foaming | Over 98% uniform foaming |
| Key Advantages | Flame retardant, self-extinguishing, stable thermal conductivity, compression resilience >80% | Even spray-coating alignment, high moisture resistance, reduced line-freezing risks |
Our dedicated R&D division continually optimizes chemical blowing agents to ensure completely uniform microcellular foaming. Our testing ensures that the material achieves a compression resilience of over 80%, retaining its shape and insulation value under persistent mechanical loads.
The primary advantage of our Self-Adhering Foam Tape is the integrated pressure-sensitive adhesive layer. Traditional site-applied adhesives are vulnerable to moisture, uneven application thickness, and slow curing times. By using automated industrial laminators, Kingflex applies a uniform, high-tack acrylic adhesive layer protected by an easy-to-release PE film or siliconized paper liner. This ensures optimal surface contact, immediate adhesion, and long-term durability across the entire pipe or duct surface.
This design is highly valuable for applications on commercial building HVAC duct networks, industrial process lines, and cleanroom installations where chemical vapors and installation times must be kept to a minimum.
Engineered to perform in demanding commercial climates while ensuring prompt global delivery and stable B2B supply lines.
Perfect for preventing condensation on cold water lines and energy loss on warm ducts. Our self-adhering foam tape seals joints tightly, preventing energy leakage and microbial growth in high-humidity building envelopes.
Specifically engineered variants insulate low-temperature systems, avoiding freezing and thermal shock damage in chemical processing, cold chains, and liquefied gas lines.
Used extensively in railway carriages, automotive walls, and industrial machine enclosures. The open-cell/closed-cell hybrid structures absorb noise while providing reliable vibration damping.
As a designated production enterprise authorized by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, Kingflex operates five large automated assembly lines. Our annual production capacity exceeds 600,000 cubic meters, allowing us to support large-scale commercial developments and industrial projects without supply disruptions.
Located in the Dacheng green building materials corridor, we maintain direct access to raw materials, ensuring lower production costs and reliable production schedules. Over the past 16 years, we have exported to more than 66 countries, giving our logistics team a deep understanding of international shipping, customs, and ports.
Verifiable compliance documents and real-world installations showcasing the durability of Kingflex products under pressure.
We believe in verifiable product quality. Kingflex products have passed rigorous test regimens, receiving key international certifications:
Each production batch is traceable from raw monomer input to final shipment, ensuring consistent performance for our global commercial and industrial clients.
Compare the dimensional structure and composition options for our specialized sheet rolls, insulating tubes, and protective tapes.
Our sheet rolls are optimized for large-diameter pipelines, duct systems, and flat structural surfaces. The self-adhering backing makes installation fast and secure.
Material: NBR/PVC Blend
Thickness: 6mm - 50mm
Density: 40 - 55 kg/m³
Temperature Range: -40℃ to +105℃
Designed for fast slip-on or slit-and-seal installation over existing copper and steel lines. These pipes offer excellent structural resilience and thermal resistance.
Material: NBR/PVC Blend
Thickness: 9mm - 40mm (ID: 6mm - 114mm)
Density: 40 - 55 kg/m³
Temperature Range: -40℃ to +105℃
Critical engineering and installation answers to assist architects, procurement specialists, and HVAC engineers.
Choose from our specialized rubber foam tubes, high-density insulation boards, and foil-faced rolls designed for harsh environment protection.
