Premium industrial elastomeric foam sheets, rolls, and pre-formed tubes customized for global HVAC/R production systems.
Exploring the critical parameters of elastomeric foam insulation in global air conditioning factories and OEM production lines.
In modern HVAC/R systems, thermal efficiency and condensation protection are the benchmarks of quality construction. Air conditioner factories worldwide face severe challenges: rising energy standards, environmental compliance, and the perpetual threat of mold or moisture intrusion in cooling systems. Selecting a highly engineered insulation material is no longer just a purchasing decision; it is a critical engineering requirement.
This whitepaper covers the technological features of Kingflex Air Conditioner Insulation Solutions. By using closed-cell elastomeric technology, Kingflex delivers systems that reduce thermal loss, protect against vapor transmission, and lower structural acoustic transmission. Manufactured inside state-of-the-art Chinese production lines, these materials comply with international standards including BS 476, CE, REACH, RoHS, UL94, and ASTM.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex's research development and production departments are located in the well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrated on research and development, production, and sales. In operation, Kingflex takes energy saving and consumption reduction as its core concept.
We provide comprehensive 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.
Established by the Jinwei Group, which possesses more than 40 years of industrial history, Kingflex carries forward a long heritage. Established in 1979, the group was the first manufacturer of thermal insulation materials north of the Yangtze River. Today, the factory hosts 5 large automatic assembly lines, delivering thermal insulation products widely used in construction, petroleum, chemical, national defense, aerospace, and other demanding industries.
Why air conditioner factories rely on elastomeric closed-cell structures for anti-condensation and energy conservation.
Kingflex elastomeric foam features an evenly distributed closed-cell structure with a rate exceeding 98%. This micro-cell distribution restricts water vapor ingress, maintaining a stable, low thermal conductivity rating over a long service life.
Safety is critical in modern construction. Our insulation products are engineered to meet strict flammability standards, complying with BS 476 Class 0, CE, and UL94 ratings, delivering reliable self-extinguishing properties when exposed to fire.
Condensation damages surrounding structures and degrades mechanical systems. Our NBR/PVC formulation delivers a high moisture resistance factor (high μ value), removing the need for external vapor barriers on indoor HVAC installations.
Engineered for air conditioner pipe assemblies, VRF loops, and water-chilled systems.
| Insulation Type | Material Matrix | Thickness Range | Density Range | Service Temp. Range | Water Vapor Resistance (μ) |
|---|---|---|---|---|---|
| Black Rubber Foam Sheet Roll | Premium NBR/PVC Blend | 6mm - 50mm | 40 - 55 kg/m³ | -40℃ to 105℃ | ≥ 10,000 |
| Black Rubber Foam Pipe | Premium NBR/PVC Blend | 9mm - 40mm (ID: 6-114mm) | 40 - 55 kg/m³ | -40℃ to 105℃ | ≥ 10,000 |
| Cryogenic Insulation Tube/Roll | Specialty Dolefin / Synthetic | Custom Calibrated | 50 - 65 kg/m³ | Down to -200℃ | ≥ 20,000 |
| Acoustic Open Cell Panel | Modified PU/NBR Elastomeric | 10mm - 50mm | 35 - 45 kg/m³ | -40℃ to 85℃ | Acoustic absorption focused |
Our employees are outstanding in their own right, but together they are what makes Kingflex a rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service for our clients.
Kingflex supports innovation by maintaining an on-site testing facility. Our engineering structure includes:
This organizational alignment guarantees that every roll of self-adhesive insulation, foil-clad sheet, or halogen-free pipe meets project guidelines before dispatch.
Strategic supply chain advantages, scale production, and strict quality control protocols.
Our 5 automated assembly lines operate continuous vulcanization and foaming processes. This removes cell structure inconsistencies common in batch processing, resulting in stable density and thermal parameters across long runs.
Located in the Dacheng green-building materials hub, Kingflex profits from raw material ecosystems, specialized technical labor pools, and optimized land/sea transportation links, keeping pricing highly competitive.
Every shipment contains a unique batch code. From compound mixing to raw material procurement, processing temperatures, and final packaging, the production life-cycle is monitored for complete traceability.
We supply diverse configurations, including self-adhesive backings, reinforced aluminum foil facings, and customized diameters for refrigeration lines, aligning perfectly with OEM client requirements.
A look inside our 600,000 cubic meter annual capacity manufacturing plants in Dacheng, China.
Flexible elastomeric insulation systems optimized for commercial, industrial, and high-performance environments.
For large-scale ducted systems and VRF (Variable Refrigerant Flow) installations, vapor transmission control is essential. Kingflex rubber foam tubes and sheets prevent condensation on copper piping, protecting internal ceiling voids from moisture damage and mold growth.
Beyond standard commercial comfort cooling, process cooling loops require robust thermal barriers to prevent freezing and mechanical failure. Kingflex sheet rolls function as secondary containment barriers, maintaining stable process thermal zones.
Testing and compliance documentation to meet strict global engineering specifications.
ISO 9001 System
CE Compliance
BS 476 Class 0
RoHS & REACH Compliance
Proven performance in heavy-duty HVAC, energy, and commercial infrastructure projects.
Kingflex insulation products are specified across commercial high-rises, logistics refrigeration depots, pharmaceutical cleanrooms, and municipal district cooling plants. The mechanical design of elastomeric foam handles ambient temperature fluctuations without degradation.
Case Performance Highlights:
Direct client screenshots verifying quality, logistics, and production performance.
Our black rubber foam sheet rolls are designed to insulate large-diameter air ducts, HVAC equipment housings, flat surfaces, and irregular components. The NBR/PVC matrix offers flexibility and structural strength during installation.
Designed for slide-on or slit-and-glue installations over copper, iron, and steel pipelines. The precise inner diameters match standard global piping sizes, reducing mechanical strain at joints and elbow junctions.
Get expert answers regarding performance, installation, and procurement specifications.
Premium structural components for diverse architectural, thermal, and industrial projects.
Understanding raw material mixing, sheet rolling, and automatic cutting lines.
Targeted solutions for low-temperature applications, halogen-free requirements, and sound absorption setups.
How Kingflex addresses the shift towards zero-ODP, halogen-free, and sustainable construction mandates.
As governments implement carbon-neutral building targets, the material requirements for HVAC/R insulation have shifted. Traditional formulations containing volatile organic compounds (VOCs) or ozone-depleting halogens are being phased out in favor of clean chemistry. Kingflex stands at the forefront of this transition, engineering zero-halogen products designed to prevent chemical outgassing in high-occupancy buildings.
Furthermore, our manufacturing plant in Dacheng continues to reduce carbon intensity per cubic meter. By optimizing continuous foaming temperatures and using secondary thermal heat recovery, Kingflex provides global supply chain managers with products that satisfy green building certifications (such as LEED and BREEAM). Partnering with Kingflex ensures your HVAC systems meet modern performance and sustainability standards.
Kingflex