Browse our top-tier elastomeric foam rolls and tubes engineered for low thermal conductivity, high moisture protection, and acoustic absorption.
Analyzing the growing integration of color-coded elastomeric insulation within modern HVAC and industrial engineering.
Traditionally, elastomeric rubber foam insulation has been manufactured in standard charcoal black. However, modern commercial construction, industrial processing plants, and critical data centers are rapidly shifting toward color-coded infrastructure. Blue Color Rubber Foam Insulation Tubes serve a dual purpose: providing high-end thermal resistance and acting as a visual indicator for chilled water lines, cold-temperature loops, and ventilation supply lines.
By standardizing on blue insulation, facility managers, maintenance workers, and structural inspectors can identify systems instantly. This reduces diagnostic downtime, prevents maintenance mistakes, and improves safety parameters in complex plant configurations.
For chilled water pipes, preventing surface condensation is the primary objective of insulation design. When humid air contacts cold piping, liquid water forms, leading to rust, mold growth, and a severe reduction in building air quality. Our blue elastomeric rubber foam maintains a closed-cell structure rate over 98%, creating an integrated vapor barrier. This blocks moisture permeation at its molecular source, eliminating the need for separate external vapor jackets.
A legacy of over four decades of thermal insulation mastery and green-building leadership.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our state-of-the-art research development and production department is situated in Dacheng, China—the widely recognized capital of green-building materials. As an energy-saving, environmentally friendly enterprise, we concentrate on the complete lifecycle of thermal protection: research and development, automated production, localized sales, installation guidance, and dedicated post-sale services.
We are established by the Jinwei Group, which boasts more than 40 years of industrial history. Founded in 1979, the group was the pioneer manufacturer of thermal insulation materials north of the Yangtze River. We hold deep experience in adapting elastomeric compositions for different climate zones and demanding industrial applications.
Our employees are amazing in their own right, but together they make Kingflex a leading powerhouse in global thermal insulation. The Kingflex team is a tight-knit, talented group aligned with a shared vision of delivering first-class service to clients across the globe. Our R&D department features 8 professional chemical and mechanical engineers, supported by 6 international sales specialists and 230 dedicated factory technicians.
Our operational framework focuses on energy saving and consumption reduction as our core concepts. We help contractors, distributors, and plant owners design custom thermal barriers that dramatically reduce HVAC electricity draw, minimize carbon footprints, and prevent thermal bridging.
Physical properties of our premium NBR/PVC elastomeric rubber foam insulation series.
| Characteristic / Parameter | Value / Range | Standard Met / Method |
|---|---|---|
| Material Composition | NBR (Nitrile-Butadiene Rubber) / PVC Blend | ASTM C534 Compliant |
| Wall Thickness | 6mm to 50mm (Sheets & Rolls) | 9mm to 40mm (Tubes) | EN 13467 |
| Inner Diameter (ID) - Tubes | 6mm to 114mm | Standard Copper & Iron Pipe Sizes |
| Foam Density | 40 - 55 kg/m³ | ASTM D1622 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ASTM C518 / ISO 8301 |
| Service Temperature Range | -40°C to 105°C | Continuous System Testing |
| Closed-Cell Ratio | ≥ 98% | Micro-cellular Analysis |
| Moisture Resistance Factor (μ) | High resistance to water vapor absorption | EN 12086 |
| Flame & Smoke Performance | Flame retardant, self-extinguishing | BS 476 Part 7 / UL 94 V-0 / CE Class |
Delivering verified performance characteristics through rigorous international lab certification processes.
We believe that insulation is only as good as the chemistry behind it. Our 8 senior engineers constantly optimize our NBR/PVC matrix compositions. Our core research focuses on improving the density matrix, increasing compression resilience (which currently sits comfortably above 80%), and achieving ultra-low thermal conductivity. The laboratories conduct aging tests to simulate 10 to 15 years of continuous thermal loading, ensuring that the material does not shrink or lose its moisture barrier integrity.
Exporting to over 66 countries requires strict compliance with individual national building code standards. Kingflex products have successfully cleared major global certification thresholds, verifying our performance under fire, toxic smoke, and chemical safety limits. Our certifications include BS 476, CE, REACH, RoHS, UL94, and ASTM standards. Additionally, all Kingflex products have detailed batch numbers and manufacturing logs to ensure complete supply chain traceability from raw materials to installed tubes.
Proving reliability on real job sites and maintaining transparent, trace-checked communication lines.
From towering skyscrapers in metro centers to high-purity pharmaceutical manufacturing plants, our rubber foam products provide the thermal foundation that keeps projects running at peak efficiency. We supply integrated solutions that combine noise reduction, moisture protection, and condensation mitigation.
We work closely with global mechanical contractors, procurement departments, and civil engineers. Transparent updates, rapid custom manufacturing turnarounds, and precise logistics tracking make Kingflex a trusted partner for long-term project collaborations.
Operating 5 large high-capacity automatic extrusion lines to serve global distributor networks.
Review our core dimensions, material benefits, and tailored project applications.
Kingflex Standard Dimensions:
Material: NBR/PVC Blend
Thickness: 6mm to 50mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
Primary Advantages:
Broad Applications:
Ideal for large-surface ducts in central air systems, sound and thermal insulation for building walls, anti-condensation coverage for storage tanks, and carriage insulation in rail transit or cold storage facilities.
Kingflex Standard Dimensions:
Material: NBR/PVC Blend
Thickness: 9mm to 40mm
Inner Diameter (ID): 6mm to 114mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
Primary Advantages:
Broad Applications:
HVAC systems, chilled and hot water pipes, building water supply lines, refrigeration setups, commercial ventilation systems, chemical pipelines, and heat preservation for solar water networks.
Explore our specialized functional variations including corrosion-resistant, flexible cryogenic, and high-temp rockwool solutions.
Optimizing packaging, bulk transport volumes, and localization compliance for international buyers.
For international building contractors and wholesale distributors, freight cost is a vital factor in final unit pricing. Because rubber foam is a lightweight, high-volume cargo, Kingflex engineers have designed optimized packaging systems. Our compression-packaging techniques allow up to 40% more product to be loaded per 40ft HQ container without compromising the cell elasticity or physical recovery of the foam when unpacked.
We work closely with major ocean freight networks to coordinate steady shipping schedules. This ensures that projects from Latin America to Southeast Asia, Europe, and the Middle East receive shipments on time, minimizing lay-down delays on commercial jobsites.
Local compliance acts as a non-negotiable gateway for commercial engineering. While our standard NBR/PVC blend satisfies core EN and ASTM specifications, we offer custom formulation services. For jurisdictions demanding halogen-free materials, enhanced smoke density limits, or strict VOC restrictions, our R&D lab can adapt the raw compound formulations to guarantee localized compliance prior to manufacturing.
Detailed engineering and supply chain answers from our expert support desk.
Complete your procurement specs with our sound-damping, self-adhesive, and specialized cryogenic insulation products.
Kingflex
