High-Performance Closed-Cell Elastomeric Systems for Sub-Zero Thermal Security, LNG Pipeline Control, and Heavy Industrial Process Insulation Engineering.
Engineered to prevent extreme heat gain and moisture ingress in cryogenic, industrial, and heavy-duty HVAC environments.
In modern process industries, managing sub-zero operations requires rigorous control of thermodynamics. Cryogenic insulation systems are critical components across liquefaction facilities, petrochemical complexes, and superconducting test structures. The surge in international Liquefied Natural Gas (LNG) distribution, along with deep-space propulsion programs and green liquid hydrogen distribution loops, has increased the demand for reliable high-barrier thermal materials.
Standard open-cell insulation materials fail under cold system stress because moisture rapidly penetrates the structure, freezing into ice. This ice buildup causes thermal bridging and structural damage. Specialized elastomeric materials, engineered with dense NBR/PVC closed-cell structures, provide the reliable moisture barrier required for cryogenic processing, cold chain security, and energy efficiency.
Different industrial fields require targeted insulation systems to handle varying temperature limits, environment profiles, and structural designs. Our NBR/PVC and elastomeric foam configurations are engineered to serve key target sectors:
Ensures temperature control and limits vapor migration on pipelines down to -40°C in multi-layer layouts. Highly flexible to prevent pipe cracking from temperature drops.
Saves energy and controls condensation in large commercial water systems, high-capacity air ducts, and processing units.
Lightweight elastomeric materials that provide acoustic insulation and resist temperature fluctuations under high physical stress.
| Material Configuration | Standard Thickness | Density Range | Service Temperature | Key Advantages |
|---|---|---|---|---|
| Elastomeric Cryogenic Foam | 6mm - 50mm | 40 - 55 kg/m³ | -40℃ to 105℃ | Closed-cell rate >98%, high moisture barrier, flexible |
| NBR/PVC Composite Tube | 9mm - 40mm (ID 6-114mm) | 42 - 50 kg/m³ | -45℃ to 105℃ | Uniform density distribution, low flame spread index |
| Foil-Faced Protective Sheets | 10mm - 25mm | 45 - 55 kg/m³ | -40℃ to 105℃ | High mechanical defense, direct UV reflection protection |
Established as an energy-saving and environmentally friendly manufacturer, Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for high-quality thermal insulation products. Located in Dacheng, China—a hub for green building materials—the production department handles everything from research and development to final quality testing.
Our operation is based on resource conservation and emission reduction. We provide support at every step of a project: starting with engineering consultations, customized laboratory R&D, structural design, installation training, and after-sales support.
Founding under Jinwei Group: Jinwei Group is established as the first specialized manufacturer of thermal insulation materials north of the Yangtze River, laying the groundwork for our rubber foam manufacturing technology.
Global Expansion Phase: Kingflex launches automated assembly lines and starts exporting high-grade elastomeric insulation materials, expanding into 66 foreign countries across Europe, the Americas, and Southeast Asia.
Production Capacity Scale: Operating 5 automated assembly lines with a capacity of 600,000 cubic meters annually. Kingflex is recognized as a designated supplier for major industrial and chemical piping infrastructure projects.
Ensuring compliance with international fire safety and environmental standards through systematic quality testing.
Our dedicated team of 8 professional engineers in our R&D Department focuses on improving thermal performance, optimizing fire safety properties, and enhancing long-term moisture resistance. Kingflex insulation products have passed major international testing standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM.




As standard process requirements become more demanding, Kingflex is adapting its product development to target sub-zero performance benchmarks. The next generation of industrial insulation systems faces several key challenges:
Our team includes 8 R&D engineers, 6 international sales consultants, and 230 workers. This combination of engineering support and automated manufacturing allows us to deliver high-performance insulation systems worldwide.
Our products are used in various settings, from municipal commercial builds to heavy chemical projects.




We focus on building long-term relationships through direct project communication. Our manufacturing processes include full traceability for every batch of rubber foam sheet and pipe insulation shipped to global distributors.




We maintain an inventory of standard-size elastomeric rolls and pipes to ensure prompt delivery for large-scale projects.
Industrial formulations engineered for condensation control and pipe insulation in commercial and manufacturing settings.
Additional systems in our manufacturing line, including flexible tubes and specialized rock wool configurations.
Detailed answers to common questions about industrial and cryogenic insulation systems.
It is primarily used for commercial HVAC ductwork, clean-room air conditioning systems, industrial process pipelines, cold-storage refrigeration, and acoustic insulation. The closed-cell structure helps limit energy loss and control moisture migration in humid environments.
Yes. Our rubber foam insulation includes flame-retardant additives to meet international safety standards (such as BS 476 Class 0/Class 1 and UL94 flammability ratings). In the event of a fire, the material is self-extinguishing and helps limit flame spread.
Rubber foam is a flexible, closed-cell material with high moisture resistance, making it suitable for cold piping and HVAC systems where condensation is a concern. Rock wool is a fibrous mineral material that handles high temperatures and is suited for dry, high-heat industrial processing and structural fireproofing.
Yes. We offer customized OEM production, including specific dimensional modifications (thickness, inner diameter, length), aluminum foil laminations, and specialized self-adhesive backings to meet different design requirements.
Our products are certified under BS 476, CE, REACH, RoHS, UL94, and ASTM. Testing is performed in certified laboratories to verify chemical safety and mechanical performance for international distribution.
Yes. Every production run is tracked from raw material mixing to final packaging. We print production codes on our products to trace manufacturing details and verify compliance with project specifications.
We produce standard sheet rolls in thicknesses ranging from 6mm to 50mm, allowing for single-layer installations or multi-layer configurations on heavy industrial pipelines.
Under recommended operating temperatures and standard environmental conditions, our insulation systems typically have a service life of 10 to 15 years, maintaining consistent thermal performance and structural integrity.