Kingflex
Explore our elite grade thermal insulation sheet rolls, tubes, and specialty cryogenic materials optimized for maximum thermal resistance.
In modern industrial and commercial infrastructure, energy efficiency and safety are non-negotiable criteria. Glass Cloth for Duct Insulation has emerged as the definitive global standard for enclosing, reinforcing, and sealing thermal systems. The worldwide push for sustainable construction and green buildings (underwritten by standards like LEED and BREEAM) has significantly elevated the performance metrics required for duct insulations.
HVAC air handling units (AHUs), ventilation ducts, and process systems in chemical, maritime, and residential projects are exposed to severe conditions. Glass fiber fabric, laminated with aluminum foil or composite rubber foams, acts as a high-density protective barrier. It effectively prevents condensation, resists mechanical wear, blocks vapor ingress, and guarantees fire safety across high-velocity thermal paths.
Industrial developers and MEP (Mechanical, Electrical, and Plumbing) contractors demand high tensile strength glass cloth that remains structurally sound between extreme temperatures, preventing heat transfer and minimizing acoustic radiation.
Pioneering energy-saving building materials with advanced manufacturing scale and certified processes.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and primary production divisions are strategically located in Dacheng, China—widely recognized as the national capital of green-building materials. We are an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and global sales.
Our roots trace back to the Jinwei Group, which boasts a history of more than 40 years. Established in 1979, the Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. Over four decades, this group has fostered cutting-edge engineering processes and raw material integrations that keep our factories at the pinnacle of efficiency.
Today, Kingflex operates as a designated supplier authorized by the Chinese Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry. This high level of domestic recognition reflects our compliance with strict national standards, laying the foundation for our international export success.
Innovating to lead the development of the global building materials industry through scientific formulation and rigid quality checks.
Our workforce forms the backbone of Kingflex. We host 8 highly professional, dedicated R&D engineers, 6 experienced international sales representatives, and over 230 technical workers. Our R&D division focuses specifically on advancing physical properties like thermal conductivity reduction, flame retardancy improvements, and high-tensile glass cloth lamination techniques.
In the past 16 years, Kingflex thermal insulation products have been exported to more than sixty-six countries all over the world. Our deep understanding of overseas regulatory frameworks allows us to custom-engineer insulation barriers that comply with localized building codes across Europe, the Americas, Southeast Asia, and the Middle East.
Rather than acting as a simple vendor, Kingflex is an integrated solutions provider. We supply comprehensive energy-saving solutions that cover thermal insulation, cold conservation, and sound reduction. Our service portfolio ranges from consultation and manufacturing to detailed installation guidance and responsive post-sale support.
Our dedicated laboratory constantly evaluates the performance of elastomeric foams and glass cloth facings. In these testing chambers, materials undergo severe flame exposure, mechanical shear testing, aging tests, and thermal resistance checks. By laminating glass cloth directly onto elastomeric rubber structures, we create composites that resist mechanical damage during installation and operations.
Accurate physical parameters, operational limits, and dimensional ranges of our core elastomeric insulation products.
Engineered from premium NBR/PVC elastomeric matrixes, our sheet rolls are formulated to deliver highly uniform cell walls, maximizing thermal capture and stabilizing performance under variable environment stress.
| Parameters | Specifications & Range |
|---|---|
| Material Composition | NBR / PVC Elastomeric Base |
| Available Thickness | 6mm to 50mm |
| Core Density | 40 to 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
| Closed Cell Rate | ≥ 98% |
| Compression Resilience | ≥ 80% |
Manufactured using advanced extrusion technology, our insulation pipes provide perfect concentric geometry, facilitating fast slip-on installation and ensuring seamless joint fits on complex copper or steel runs.
| Parameters | Specifications & Range |
|---|---|
| Material Composition | NBR / PVC Elastomeric Base |
| Wall Thickness | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Core Density | 40 to 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
| Process Enhancement | Professional internal pipe spraying |
Discover how Kingflex delivers reliable thermal containment across commercial, residential, marine, and industrial sectors worldwide.
In large-scale commercial buildings, hotels, malls, and hospital structures, central air conditioning ducts are prone to high energy loss and condensation. The integration of glass cloth faced elastomeric foam sheets around air ducts blocks moisture absorption, reduces vibration-induced noise, and prevents cold energy leakage.
For industrial processing, liquefied natural gas (LNG), and cold-chain facilities, pipeline operating temperatures plummet. Kingflex cryogenic rubber foam insulation systems, clad in glass cloth, provide a durable defense against mechanical impact, thermal stress, and atmospheric moisture intrusion.
Engine rooms, cabins, and ventilation lines on maritime vessels face constant humidity and saline corrosion. Using glass cloth for duct insulation provides mechanical protection and resistance to chemical corrosion, maintaining structural integrity under marine conditions.
In refineries and chemical plants, process piping carries volatile media. Our high-density, fire-retardant insulation shells with high compression resilience absorb mechanical shocks, withstand hot steam cycles, and lower chemical degradation risks.
Open-cell acoustic formulations absorb high and mid-frequency noise, dampening fan hums, structure-borne sound transmission, and high-velocity turbulence inside complex duct geometries.
Outdoor plumbing is vulnerable to frost, solar UV, and thermal dissipation. Our elastomeric sleeves reduce heat loss in solar loop pipelines, optimizing energy yields and preventing freeze-induced pipe ruptures.
The global insulation supply chain relies heavily on Chinese manufacturing due to its efficiency, localized supply networks, and production scale. Kingflex is at the center of this industrial ecosystem, offering several advantages:
Our materials comply with major global safety codes, and we maintain transparent communication with our international partners.
For international projects, compliance is a prerequisite. Kingflex products undergo regular testing by third-party bureaus to achieve and maintain key global certifications:
We work closely with structural developers, project managers, and insulation distributors worldwide. We maintain communication throughout the procurement cycle, from technical design reviews to logistics coordination.
Our international clients regularly visit our manufacturing facility in Dacheng to audit our raw material processing and product QA workflows. These visits help confirm our production capacity, quality control, and export packaging readiness, building long-term confidence in our solutions.
Visual highlights of our automated manufacturing lines, quality control steps, and real-world project applications.
Technical specifications, application guidelines, and procurement queries answered by our engineering department.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. By adding a glass cloth outer facing, you add physical protection and vapor protection, making it ideal for high-humidity environments.
Yes, our rubber foam insulation products are fire retardant, meeting fire safety standards for building and industrial projects, including BS 476, UL94, and CE ratings.
Rubber foam is flexible, closed-cell, and moisture-proof, suitable for HVAC and building insulation. Rock wool is high-temperature resistant and fireproof, suitable for industrial high-temperature steam pipeline insulation.
Yes, we support complete OEM/ODM services, allowing adjustments to wall thickness, inner diameter, colored jackets, or specialty glass cloth lamination to meet specific project needs.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM, and other international certifications, ensuring product quality and compliance with global standards.
Yes. We maintain clear batch numbering on our products, allowing full traceability from raw materials to manufacturing runs for quality assurance purposes.
We can produce rolls in thicknesses ranging from 6mm to 50mm, providing solutions for standard building insulation as well as thick industrial cladding.
Under standard operational environments, our materials have a service life of approximately 10 to 15 years, maintaining consistent thermal resistance and structure throughout.
Technical insulation solutions engineered for low-temperature applications, mechanical protection, and sound absorption.
