Certified high-density thermal and acoustic insulation structures engineered for intense subcontinental climates.
India is undergoing a dramatic structural transformation across its urban and industrial landscape. Backed by initiatives like the National Building Code of India (NBC 2016), the Energy Conservation Building Code (ECBC), and the rising penetration of green ratings like GRIHA and LEED India, standard construction materials are being replaced by safety-conscious alternatives. This evolution is particularly crucial in the heating, ventilation, air conditioning, and refrigeration (HVAC/R) sectors.
Standard elastomeric foam insulation materials containing chlorinated or brominated flame retardants (halogens) are increasingly recognized as critical hazards in fire scenarios. In the event of a fire, halogenated compounds release dense, highly toxic smoke and acid gases (such as Hydrogen Chloride - HCl) which are fatal to building occupants and severely corrosive to digital assets.
For India's major commercial hubs—including Delhi-NCR, Mumbai Metropolitan Region (MMR), Bengaluru, and Hyderabad—the demand for halogen-free insulation products has surged. This transition is essential for safety, protecting sensitive machinery, and achieving sustainability compliance.
Advanced chemical compounding delivering maximum thermal protection with zero halogen presence.
Conventional flexible foams use chlorine and bromine derivatives to suppress combustion. Kingflex replaces these with inorganic metal hydrates like Aluminium Trihydrate (ATH) and Magnesium Hydroxide (MDH). Under high heat, these release water molecules endothermically, absorbing heat energy and creating a robust char layer that slows down flame spread without releasing toxic fumes.
The physical performance of our insulation relies on an optimized micro-cellular closed-cell geometry. Boasting a closed-cell rate exceeding 98%, this structural architecture restricts moisture infiltration. It delivers a water vapor diffusion resistance index (μ) greater than 10,000, ensuring stable thermal performance over decades.
Maintains extremely low thermal conductivity (λ ≤ 0.034 W/m·K at 0°C). It provides consistent insulation performance under high temperatures, reducing condensation risks on HVAC pipelines and lowering energy consumption across large commercial facilities.
| Performance Parameter | Kingflex Halogen-Free Foam | Standard NBR/PVC Foam | Test Standard Reference |
|---|---|---|---|
| Halogen Content (Cl, Br) | 0% (Zero Detection) | 10% - 25% | EN 14582 / RoHS Compliant |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.035 W/(m·K) at 0°C | ASTM C518 / ISO 8301 |
| Moisture Resistance Index (μ) | ≥ 10,000 | ≥ 7,000 | BS EN 12086 / ASTM E96 |
| Fire Rating Classification | Class 0 / Class 1 / V-0 | Class 1 / Class 2 | BS 476 Part 6 & 7 / UL 94 |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | ASTM C411 |
| Smoke Emission Index | Highly Low Smoke / s1 | Moderate to Heavy / s3 | EN 13501-1 / ASTM E662 |
Tailored application setups matching India's challenging humidity, industrial requirements, and high urban density.
With Mumbai, Chennai, and Noida emerging as regional hubs for hyperscale cloud deployments, corrosion mitigation is paramount. Any halogen gas release during local wiring friction or micro-fires can ruin millions of dollars in IT infrastructure. Kingflex Halogen-Free sheets provide standard-compliant cooling pipe insulation that will not corrode copper piping or critical electronics.
India’s pharmaceutical manufacturing zones (such as Genome Valley in Hyderabad and Baddi in Himachal Pradesh) require strict control over airborne volatile organic compounds. Our halogen-free structures avoid volatile outgassing, ensuring cleanroom classification integrity under ISO 14644-1.
With major transport expansions across Bangalore, Delhi, Mumbai, and Kolkata, public fire safety is a top priority. Kingflex halogen-free foam materials comply with rigorous international safety codes, ensuring low smoke density to secure evacuation routes.
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.
Our roots run deep. Kingflex was established by the Jinwei Group, which has more than 40 years of history. Established in 1979, the Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River.
Our employees are amazing in their own right, but together they are what makes Kingflex such a rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of consistently delivering first-class service to our clients.
To drive product quality forward, Kingflex employs 8 professional engineers in our R&D Department, 6 professional international sales specialists, and 230 workers in the production department.
At present, Kingflex operates 5 large automatic assembly lines, yielding an annual production capacity of more than 600,000 cubic meters. Because of this scale, Kingflex has become a designated production enterprise appointed by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
For Indian construction companies, EPC contractors, and distributors, partnering with a Chinese supplier offers strong economic and logistical advantages. By utilizing automated blending, high-precision vulcanization controls, and high-speed twin-screw extrusion systems, Kingflex achieves production yields that stabilize unit costs.
This scale allows Kingflex to offset raw material cost spikes, offering stable pricing for long-term projects like metro line developments and major commercial complexes.
Furthermore, our factory is located near Tianjin Port, allowing us to offer efficient logistics and transit routes to India's major commercial gateways, including Nhava Sheva (Mumbai), Chennai, and Mundra ports. This geographical advantage helps ensure reliable, on-time delivery across the subcontinent.
Tested and verified by independent global testing laboratories to ensure absolute fire and environmental compliance.
Kingflex insulation products have passed rigorous test procedures including BS 476, CE, REACH, RoHS, UL94, and ASTM standards. Our quality assurance systems track every batch, giving you full product traceability from raw chemical components to final delivery at your job site.
A complete selection of insulation solutions for commercial HVAC, low-temperature cryogenic systems, and acoustic projects.
Demonstrated field performance in severe operating environments worldwide.
Kingflex Standard Dimension:
Our halogen-free and standard closed-cell foams are designed for diverse engineering installations:
Genuine customer communication records showing our commitment to quality, support, and responsiveness.
Expert technical insights regarding product performance, certification, and project planning.
It is primarily used for commercial HVAC ducts, air conditioning piping networks, building envelope thermal barriers, and industrial cold-line setups to prevent condensation and minimize heat transfer. Additionally, its closed-cell elastic structure provides acoustic damping, helping to reduce noise transmission in mechanical piping and cleanrooms.
Yes. Kingflex rubber foam insulation is formulated with flame retardants to meet BS 476 Part 6 & 7 (Class 0/Class 1) and UL 94 V-0 flame-retardant safety standards. These materials are self-extinguishing and do not produce flaming droplets, helping to prevent fire spread in building and industrial projects.
Rubber foam is a flexible, closed-cell elastomeric material with built-in moisture protection, making it highly effective for HVAC systems, refrigeration lines, and preventing pipe condensation.
Rock wool is an open-fiber mineral insulation suited for high-temperature applications, industrial ovens, and structural firewalls. It typically requires an external vapor barrier to prevent moisture absorption in cold-line applications.
Yes. We offer comprehensive OEM and ODM support. We can customize dimensions, sheet thicknesses (from 6mm up to 50mm), pipe inner diameters, and supply specialized self-adhesive backings or protective foil facings to meet specific project engineering requirements.
Our products are tested and certified to comply with major international standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This compliance helps ensure safety, quality, and environmental alignment for project work worldwide.
Yes. Every production batch of Kingflex insulation sheet rolls and tubes undergoes raw material and processing checks. Batch coding on our packaging allows us to track quality parameters from the factory floor to the job site.
We operate continuous-vulcanization processing lines that produce sheet rolls in thicknesses ranging from 6mm to 50mm. This allows us to supply thin, flexible wraps for small tubes as well as thick, heavy-duty sheets for industrial cooling tanks.
When installed according to engineering guidelines, Kingflex rubber foam insulation typically provides a service life of 10 to 15 years. The closed-cell structure resists moisture ingress, helping to maintain stable thermal conductivity over the lifespan of the installation.
Get in touch with our engineering team today to request product samples, custom project pricing, or detailed technical specifications. We are ready to assist with your insulation requirements.
Send Inquiry Now
Kingflex