Explore our top-tier commercial-grade flexible rubber foam and specialized insulation products designed to minimize thermal bridging and energy dissipation.
Kingflex Insulation Co., Ltd. stands at the forefront of the global thermal and acoustic insulation manufacturing sector. Operative as a specialized manufacturing and trading powerhouse, we focus our intensive R&D and operations in Dacheng, China—the undisputed capital of green-building materials. As an energy-saving and environmentally proactive enterprise, we embed sustainable manufacturing practices in every stage of our closed-cell elastomeric production lines.
We believe in delivering robust insulation solutions through technical consulting, scientific R&D, structural engineering, installation support, and proactive post-sale services. By driving down global transmission losses, we contribute dynamically to carbon emission targets in the heavy industrial and construction frameworks.
In modern HVAC infrastructure, chemical manufacturing, and district energy projects, selecting the right pipe insulation specifications represents a critical pathway to operational savings. Procurement managers and lead design engineers face challenges concerning energy loss, condensation control, corrosion under insulation (CUI), and compliance with fire safety regulations. Kingflex addresses these complex requirements directly with customized product dimensions, certified testing protocols, and complete material traceability.
| Property Parameter | NBR/PVC Elastomeric Foam Value | Industrial Rock Wool Specification | Standards Alignment |
|---|---|---|---|
| Thermal Conductivity (0℃) | ≤ 0.034 W/(m·K) | ≤ 0.040 W/(m·K) | ASTM C518 / ISO 8301 |
| Moisture Resistance Factor (μ) | ≥ 10,000 (Closed-cell rate ≥ 98%) | Permeable (Requires vapor barrier jacket) | EN 12086 / ASTM E96 |
| Service Temperature Limit | -40℃ to +105℃ (Up to -200℃ for Cryogenic specs) | Up to +650℃ | ASTM C534 / ASTM C547 |
| Reaction to Fire | Class 0 / Class 1, Self-extinguishing | Non-combustible (Class A1) | BS 476 Part 6 & 7 / UL 94 V-0 |
| Density Distribution | 40 - 55 kg/m³ | 60 - 150 kg/m³ | ASTM C303 |
Closed-cell elastomeric foam is highly efficient for plumbing and HVAC insulation because of its tight structure. By blending high-grade Nitrile-Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC), we create a flexible barrier that resists thermal bridging. The uniform microcellular structure holds tiny air pockets in place, preventing hot or cold air from moving through.
Moisture control is essential in industrial refrigeration and HVAC systems. If moisture gets into the insulation, it reduces efficiency. Kingflex NBR/PVC foam requires no additional vapor barriers. With a water vapor transmission resistance (μ) exceeding 10,000, it prevents condensation, protecting pipes from corrosion and structural damage over a lifespan of 10 to 15 years.
Our state-of-the-art testing facility ensures compliance with BS, ASTM, CE, and RoHS standards.
Over 40 years of pioneering technical insulation solutions across China and global industrial markets.
Established as the first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for China's modern insulation sector.
Transitioned into an export-centric powerhouse. Invested in high-volume automated lines to meet European and American construction specifications.
Achieved production metrics of 5 fully automated chemical foaming lines with annual capacities scaling past 600,000 cubic meters.
Developing halogen-free, bio-degradable, and low-smoke formulations designed for extreme environments, ultra-low cryogenics, and aerospace systems.
Detailed dimensional frameworks and engineering advantages of our main product lines.
Our sheets and rolls are optimized for large-diameter ducts, mechanical equipment, and complex fittings. They are ideal for high-occupancy buildings like hospitals, hotels, and airports.
Specially manufactured for copper, iron, and plastic pipe runs. Extruded with precise interior diameters (ID) to ensure a snug fit, reducing air gaps and preventing heat flow.
Our production systems are verified by international testing agencies to ensure global project compatibility.
Real-time feedback and direct procurement validation from our international trade partners.
A look inside our 5 large automatic assembly lines and warehouse operations in Dacheng.
Answers to common technical and procurement questions from our customers.
Industrial configurations designed for ultra-low temperature, cryogenic, and high-performance applications.
A selection of specialized insulation options designed for demanding commercial applications.
Contact our technical engineering team for assistance with material selection, density calculation, thickness configuration, and compliance requirements for your next project.
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Kingflex