Engineered NBR/PVC closed cell insulation for structural, plumbing, HVAC, and cryogenic systems
In modern industrial and commercial architecture, high-efficiency insulation is no longer merely a passive design choice; it is a critical component of HVAC engineering, acoustic control, and thermodynamic optimization. Elastomeric closed-cell foam is widely recognized as the gold standard for cold systems, plumbing, and cryogenic pipelines.
The global demand for elastomeric closed-cell foam insulation has surged, driven by strict energy codes (such as ASHRAE 90.1 and International Energy Conservation Codes) and the global trend toward green, zero-emission structures. These insulation materials feature a dense, uniform, microscopic cell structure that seals against moisture vapor transmission, offering permanent thermal efficiency and preventing corrosion under insulation (CUI) in highly critical plant piping systems.
From deep cryogenics in liquefied natural gas (LNG) transport networks to multi-zone VRF HVAC systems in urban skyscrapers, these elastomeric systems provide reliable, maintenance-free performance. Sourcing directly from certified volume manufacturers ensures structural compatibility, reliable quality control, and optimized material costs.
Tested parameters validating our structural insulation integrity and performance metrics
The core technology behind elastomeric closed-cell foam lies in its synthetic rubber formulation (NBR/PVC blends). These polymers are expanded under strict control, forming a matrix of closed, gas-filled micro-cavities. This structure acts as a permanent barrier to heat flow, moisture intrusion, and mold growth, outperforming open-cell materials that require additional vapor wraps.
Moisture absorption is the primary cause of insulation failure. When moisture enters insulation, its thermal conductivity increases exponentially (since water conducts heat approximately 24 times faster than dry air). Kingflex's built-in vapor barrier ensures the system maintains its low thermal conductivity (k-value) over a service life exceeding 15 years.
Additionally, our material maintains physical flexibility across a wide temperature range, from $-40^{\circ}\text{C}$ to $+105^{\circ}\text{C}$ (and down to $-200^{\circ}\text{C}$ for specialized cryogenic grades). This flexibility absorbs mechanical stress, vibrations, and thermal expansion/contraction in large-scale piping systems without cracking or degradation.
Tailoring materials to meet extreme environmental and regulatory demands across continents
Designed to perform under high ambient temperatures and intense UV exposure without structural softening.
Meets strict low-smoke toxicity standards and low volatile organic compound (VOC) outgassing limits.
Provides critical thermal barriers for extreme cold applications, preventing ice buildup on pipeline surfaces.
Standard manufacturing configurations for sheets, rolls, and pre-formed pipe sections
| Parameter | Elastomeric Foam Sheet Rolls | Elastomeric Insulation Pipes |
|---|---|---|
| Material Base | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Available Thickness | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm | 9mm, 13mm, 15mm, 19mm, 22mm, 25mm, 30mm, 35mm, 40mm |
| Inside Diameter (ID) | N/A (Flat sheet/roll form) | 6mm up to 114mm (For standard pipe profiles) |
| Density | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Service Temp Range | -40°C to +105°C (Up to -200°C for cryogenic series) | -40°C to +105°C (Up to -200°C for cryogenic series) |
| Thermal Conductivity | ≤ 0.034 W/m·K at 0°C | ≤ 0.034 W/m·K at 0°C |
| Fire Safety Rating | Class 0 / Class 1 (BS 476), ASTM E84 25/50, UL94 V-0 | Class 0 / Class 1 (BS 476), ASTM E84 25/50, UL94 V-0 |
Proven execution across complex civil, commercial, and heavy industrial infrastructures
Primary Applications: Large-scale commercial HVAC ductwork, building envelope acoustic insulation, and heavy-duty industrial tank thermal jackets. The integrated adhesive backing simplifies installation on flat and curved surfaces alike.
Our standard sheet configurations provide excellent compression resilience (over 80%) and maintain a low moisture absorption profile, preventing structural heat transfer and surface condensation even in high-humidity zones.
Primary Applications: Chilled water pipes, hot water service lines, solar system plumbing, and cryogenic gas pipelines. Designed to slide easily onto clean pipelines or snap around installed systems with zero gaps.
The pre-formed tubes ensure even thickness along the entire run, preventing localized condensation points and thermal bridging, which extends the operational life of the underlying pipe structure.
HVAC Plant Room
Chilled Water Lines
Industrial Chillers
Distribution Ducts
Kingflex Insulation Co., Ltd. is a comprehensive manufacturing and trading enterprise specializing in advanced thermal insulation systems. Our R&D center is located in Dacheng, China, a recognized hub for energy-efficient building materials. We operate with a core focus on energy savings, raw material safety, and sustainable manufacturing practices.
We manage five fully automated, high-speed assembly lines, delivering an annual production capacity of over 600,000 cubic meters. This extensive capacity enables us to fulfill global wholesale orders while maintaining tight control over thickness tolerances, cell uniformity, and density specs.
Supported by a dedicated group of 8 professional R&D engineers, 6 international customer support managers, and a production team of 230 technicians, we provide comprehensive guidance from initial design and specification selection through to on-site installation support.
Raw Material QC
Microstructure Lab
Thermal Conductivity Test
Technical Engineers
Fully compliant with international construction codes and mechanical specs
ISO 9001 Certification
CE Certification
BS 476 Fire Standard
RoHS & REACH Compliance
Delivering high-volume wholesale supplies to distributors and major developers globally
Extrusion Line
Continuous Curing
Precision Slitting
Packaging Facility
Finished Goods Depot
Global Export Shipping
Online Inspection
Rubber Compounding
Direct communication and technical verification logs with international engineering partners
Delivery Tracking
Spec Validation
Order Confirmation
Quality Feedback
Technical Specs
Providing direct answers to specification, design, and sourcing inquiries
Specialized elastomeric configurations for ultra-low temperature environments and large-scale industrial projects
Complete listing of specialized elastomerics and alternative systems
Kingflex