Premium grade elastomeric insulation systems optimized for energy recovery, air cooling, and soundproofing.
Uruguay’s distinct geographic location and its strong push towards a green energy transition place strict demands on industrial and building thermal systems. From commercial developments in Montevideo and coastal high-rises in Punta del Este to large pulp mills along the Uruguay River (such as Fray Bentos and Paso de los Toros), moisture control and thermal stability are critical parameters.
The country's humid temperate climate brings high relative humidity throughout the year, which can cause significant condensation issues. Standard fiberglass and rock wool materials often fall short in high-humidity zones unless wrapped in a perfect vapor barrier. Open-cell structures can trap moisture, accelerating Corrosion Under Insulation (CUI) and drastically reducing insulation performance. This is why closed-cell elastomeric rubber foam has become the preferred standard for HVAC pipe lines, industrial chilled water systems, and cold chain distribution centers across South America.
Additionally, compliance with national energy efficiency regulations under the MIEM (Ministerio de Industria, Energía y Minería) requires building owners and industrial operators to adopt insulation with low thermal conductivity ($\lambda \le 0.034\text{ W}/(\text{m}\cdot\text{K})$ at $0^\circ\text{C}$) and high moisture resistance ($\mu \ge 10,000$). High-quality NBR/PVC elastomeric rubber foam fits this profile perfectly.
How our elastomeric solutions solve challenges across Uruguay's leading commercial and industrial sectors.
Uruguay's massive meat and dairy export sectors rely on extensive cooling networks. Our closed-cell rubber foam prevents ice formation on ammonia and CO2 liquid lines, maintaining process temperatures down to -40°C in plants across Salto and Durazno.
High relative humidity and saline environments in Montevideo and Punta del Este challenge building cooling systems. Installing our pre-formed NBR/PVC insulation tubes completely eliminates condensation on chilled water pipes, preventing ceiling water damage.
Large-scale pulp processing plants require high chemical resistance and structural durability. Our robust rubber foam tubes protect process lines and instrumentation piping from corrosion while minimizing overall thermal loss.
A comprehensive look at performance metrics, comparisons, and testing standards for Kingflex products.
Our elastomeric foam insulation is manufactured through a continuous vulcanization and foaming process using premium quality Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) blends. This yields a micro-cell structure with a high closed-cell rate (exceeding 98%), establishing a built-in continuous vapor barrier.
| Property | Kingflex NBR/PVC Rubber Foam | Traditional Glass Wool | Standard Rock Wool |
|---|---|---|---|
| Thermal Conductivity ($\lambda$) at 0°C | $\le 0.034\text{ W}/(\text{m}\cdot\text{K})$ | $\sim 0.040\text{ W}/(\text{m}\cdot\text{K})$ | $\sim 0.044\text{ W}/(\text{m}\cdot\text{K})$ |
| Water Vapor Diffusion Resistance ($\mu$-factor) | $\ge 10,000$ (Built-in Vapor Barrier) | $\mu = 1$ (Requires external jacket) | $\mu = 1$ (Highly susceptible to CUI) |
| Fire Safety Classification | BS 476 Class 0, UL94 V-0, ASTM E84 | Non-combustible | Non-combustible |
| Service Temperature Range | -40°C to +105°C | Up to 350°C | Up to 650°C |
| Dust-Free / Fiber-Free | Yes (Safe for Hospitals and Labs) | No (Releases particulate fibers) | No (Requires full containment cladding) |
| Lifespan / Reliability | 10 - 15 Years (Constant Performance) | Prone to sagging and dampness | Requires frequent outer inspection |
High-density foam sheets and vibration-damping wraps engineered for low-temperature pipe networks.
Established by the Jinwei Group, which carries a rich manufacturing history of over 40 years dating back to 1979, Kingflex has grown to become a leading global supplier of high-efficiency thermal insulation materials. Based in Dacheng, China—the capital of green-building materials—we operate 5 large automated assembly lines, delivering an annual production capacity of over 600,000 cubic meters.
With our 8 R&D engineers, 6 international sales specialists, and a production workforce of 230 workers, we design, test, and ship premium solutions worldwide. Our products have reached over 66 countries across Europe, Asia, North America, and South America.
Uruguay’s importers and project managers benefit from our robust supply chain logistics. By leveraging direct container routes from China’s major shipping terminals to the Port of Montevideo, we provide seamless transport networks, complete Mercosur customs documentation, and consistent lead times. This direct pipeline bypasses local inventory shortages, offering premium thermal products at competitive wholesale pricing.
Get Factory-Direct PricingYears of Production History
Annual Production Capacity
Exporting Countries Globally
Micro closed-cell Ratio
Innovation in material science, environmental compliance, and eco-friendly manufacturing.
As building guidelines prioritize lower environmental impact, insulation technologies are evolving to match. The future of elastomeric foam lies in reducing emissions and improving durability. Kingflex is leading this transition by integrating bio-based raw materials and zero-halogen flame retardants, ensuring compliance with strict global ecological rules like REACH and RoHS.
Additionally, our development team is actively researching Aerogel-infused rubber foam sheets. By grafting silicate aerogels into the NBR/PVC matrix, we aim to lower the thermal conductivity coefficient to less than $0.028\text{ W}/(\text{m}\cdot\text{K})$, providing superior performance at reduced profile thicknesses. This thin-profile technology is ideal for tight structural spaces in marine, aerospace, and high-density urban residential construction.
Our products are certified to international standards, assuring quality and reliability for every project.




Kingflex thermal insulation products comply with major global test programs. We hold certifications under BS 476 (Class 0 and Class 1), CE mark for European markets, UL94 flammability ratings, and ASTM testing metrics. This comprehensive compliance guarantees that your building materials meet Uruguayan municipal safety and fire codes.




Common questions regarding elastomeric rubber foam insulation products, manufacturing processes, and installation in Uruguay.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation in commercial buildings, factories, and residential structures.
Yes, our rubber foam insulation products are fire retardant, meeting BS 476, Class 0, UL94 V-0, and ASTM flammability safety standards required for regional and international building projects.
Rubber foam is flexible, closed-cell, and highly moisture-resistant, making it ideal for HVAC, building ducting, and anti-condensation pipe wrapping. Rock wool is high-temperature resistant and fireproof, making it suitable for high-temperature steam lines and industrial boilers.
Yes, we support OEM/ODM services, allowing customization of wall thickness, inner diameter, color jackets, and self-adhesive backings to meet specific project guidelines.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM, and other international certifications, ensuring compliance with global and South American building standards.
Yes, all Kingflex products have unique production batch codes and traceability labels on their packaging, ensuring reliable tracking from raw material to installation.
We can produce thicknesses ranging from 6mm up to 50mm to suit diverse insulation needs.
When properly installed and maintained under standard operating temperatures (-40°C to +105°C), the service life is typically 10 to 15 years.
Our NBR/PVC closed-cell structure has an exceptionally high water vapor diffusion resistance factor ($\mu \ge 10,000$), keeping out salt air and ambient moisture. This helps prevent moisture accumulation on cold metal surfaces, protecting piping networks from corrosion under insulation (CUI) in coastal regions.
Select from our complete range of NBR/PVC elastomeric foam tubes, sheets, and structural wraps.
Connect with our technical support team to get comprehensive product specifications, custom dimensions, and factory-direct price quotes tailored to the Uruguayan market.
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