Explore our high-performance thermal insulation tubes, cryogenic barriers, and acoustic piping sleeves engineered to reduce carbon footprints.
Precision-manufactured closed-cell rubber foam insulation designed for optimal thermal regulation, and structural integrity across architectural and mechanical HVAC systems.
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Designed for sub-zero engineering projects, cryogenic delivery mains, and LNG carrier processes. Provides robust, long-term flexible crack resistance.
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Engineered for deep-freeze setups. Provides high elastic recovery under extreme cold cycles, preventing structural moisture ingression.
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High-tack self-adhesive rubber foam thermal insulation tape. Ensures leak-proof sealing, thermal bridge prevention, and rapid on-site maintenance.
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Premium sheet rolls ideal for wrapping large-diameter HVAC ducts, storage tanks, and irregular piping networks. Effectively reduces structural vibration.
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Offers low heat conductivity and a dense, closed-cell configuration. Restricts radiant heat transfer on industrial fluid networks.
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Acoustically optimized rubber foam pipe designed to isolate mechanical vibration and liquid flow noise in commercial drainage and HVAC systems.
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Eco-friendly insulation providing long-term structural integrity and energy savings for industrial gas infrastructure and marine applications.
Learn MoreThe global thermal insulation sector is undergoing a rapid transition, driven by strict green building certifications (such as LEED, BREEAM, and DGNB) and international energy-saving mandates. Modern industrial and municipal piping systems require high-performance, non-toxic, and flame-retardant pipe insulation to minimize thermal energy loss.
Traditionally, mineral wool and glass fiber dominated industrial insulation. However, closed-cell NBR/PVC elastomeric rubber foams have emerged as a superior choice. Traditional materials often struggle with moisture accumulation, which can cause Corrosion Under Insulation (CUI). Kingflex elastomeric systems address this issue with an integrated water vapor barrier, ensuring consistent performance and preventing corrosion.
Our insulation materials are engineered for optimal thermal resistance. The micro-cellular matrix features an ultra-low thermal conductivity coefficient (λ ≤ 0.032 W/(m·K) at 0°C), minimizing heat transfer by trapping dry air inside millions of independent closed cells.
Maintains thermal efficiency with λ ≤ 0.032 W/m·K at 0°C. Traps dry air inside closed cells, significantly reducing energy loss in steam, hot water, and HVAC piping systems.
Features a water vapor diffusion resistance factor (μ) ≥ 10,000. Provides a built-in vapor barrier that prevents structural moisture penetration and ensures long-term performance.
Meets Class 0 (BS 476 Part 6/7) and ASTM E84 compliance. This self-extinguishing material does not drip or spread flames, satisfying strict commercial safety building codes.
| Performance Characteristic | NBR/PVC Elastomeric Rubber Foam Standard Value | Traditional Fiber Insulation (Rock/Glass Wool) | Engineering Benefit |
|---|---|---|---|
| Thermal Conductivity (λ) | ≤ 0.032 W/(m·K) at 0°C | 0.038 - 0.045 W/(m·K) | Fewer mechanical energy losses; lower structural wall thickness required. |
| Moisture Vapor Factor (μ) | ≥ 10,000 (Built-in Vapor Barrier) | μ ≈ 1 (Requires external jacket) | Prevents condensation and Corrosion Under Insulation (CUI). |
| Service Temperature Range | -40°C to 105°C (Up to -200°C for Cryogenics) | Ambient to 600°C | Broad system applicability: HVAC, dual-temperature piping, cryogenic LNG. |
| Compression Resilience | ≥ 80% Elastic Recovery | Extremely low, deforms easily | Maintains original wall thickness and thermal resistance at pipe hanger supports. |
| Material Outgassing / Dust | Fiber-free, zero dust, low VOCs | High fiber shedding, dust hazards | Suitable for cleanrooms, pharmaceutical facilities, and hospitals. |
Kingflex Insulation Co., Ltd. is a manufacturing and trading combo for high-end thermal insulation materials. Backed by the Jinwei Group, which has a 40-year history, Kingflex has operated as an energy-saving enterprise focused on R&D, production, sales, and post-sale technical guidance.
We provide insulation consultation, custom product design, and installation guidance. Our production department in Dacheng, China, features 5 large automatic assembly lines with an annual capacity of over 600,000 cubic meters. These operations are designed to meet the strict requirements of international industrial systems.
Providing specialized solutions across residential, commercial, industrial, and cryogenic environments.
Prevents condensation and temperature loss in commercial air conditioning ducts and chilled water pipes. Its high moisture resistance avoids sweating in high-humidity zones.

Specially formulated elastomeric NBR/PVC remains flexible at temperatures down to -200°C. Protects pipes against thermal cracking, thermal shock, and heat gain.

With an open-cell and closed-cell hybrid design option, our sound-absorbing sleeves deaden noise from water flow, pumps, and structural vibrations.

Highly resistant to chemicals, oils, ozone, and weathering. Protects high-pressure process pipelines and outdoor thermal networks from aggressive ambient exposure.

Our dedicated team of engineers continuously refines the thermal and chemical properties of our rubber compounds.
We test thermal conductivity across varying mean temperatures to verify standard-compliant insulation performance in cold climates.
Compression, elasticity, and cyclic wear tests ensure the materials withstand piping contraction and physical stress during operation.
Materials are regularly tested in fire-testing bays to verify compliance with BS 476, UL94, and EN standards.
The Kingflex team consists of 8 R&D engineers, 6 international sales consultants, and 230 factory operators. This team manages our production lines to meet the strict specifications of international markets, including BS 476, CE, REACH, ROHS, UL94, and ASTM.
Our commitment to reliable performance is backed by recognized international certifications.




How Kingflex tailors its production lines to meet the climate-specific and regulatory requirements of regions worldwide.
In high-humidity, hot environments like GCC cities, district cooling systems are critical. Piping systems in these areas are susceptible to condensation, CUI, and high thermal gain.
Kingflex solutions for these regions feature a high closed-cell structure and low thermal conductivity, preventing condensation even in ambient temperatures above 45°C with 90% humidity.
European and North American standards require materials with low smoke emissions and strict fire ratings (such as EN 13501-1 s1, d0, and ASTM E84 25/50).
Our NBR/PVC formulations prioritize fire retardancy, low toxic outgassing, and fiber-free construction, making them suitable for LEED-certified projects.
Direct communication screenshots illustrating customer satisfaction with quality, delivery, and testing.
Our insulation products are used in commercial structures, industrial chemical facilities, and cryogenic systems globally.

Providing condensation control for district cooling lines in modern commercial towers.

Weatherproofed and chemical-resistant insulation systems for processing plants.

Sub-zero temperature insulation systems for cold storage facilities.

Specialized rubber foam matrices for LNG and cryogenic systems.
The industrial insulation market is shifting toward bio-based polymers and hybrid structures. Future insulation materials will focus on lower global warming potential and higher temperature limits.
We are researching bio-derived polymers to replace fossil-based raw materials in NBR/PVC production. Our goal is to reduce the carbon footprint of our manufacturing process while maintaining fire performance and thermal properties.
By combining sensor grids with our elastomeric foam, we aim to enable real-time detection of moisture levels under insulation. This approach will allow operators to locate and address leaks before corrosion occurs.
A look inside our 5 automated production lines and quality inspection stages.












Our core product line ranges from elastomeric tubes to specialized rock wool boards, matching various thermal requirements.

Standard flexible pipe sleeve for HVAC lines. Reduces heat loss and stabilizes thermal performance.

Formulated to resist chemical exposure and moisture, preventing Corrosion Under Insulation (CUI).

Flexible pipe insulation designed for easy installation around tight bends and elbows.

Standard black elastomeric foam pipe. Delivers reliable performance for domestic and commercial HVAC systems.

A flexible foam sleeve with low thermal conductivity, suitable for plumbing and HVAC systems.

Optimized for duct networks and chillers, helping to reduce HVAC energy consumption.

A complete system including tapes, adhesives, and hangers to ensure a continuous seal.

Engineered for sub-zero environments, remaining flexible under extreme cooling cycles.

Designed for low-temperature applications, including LNG lines and gas processing plants.

A high-performance cryogenic barrier that resists micro-cracking at sub-zero temperatures.

High-density rock wool board designed for high-temperature and structural fire barriers.

Flexible, high-temperature resistant blanket for industrial furnaces and process boilers.
A look at the global logistics networks, raw materials, and packaging lines supporting Kingflex products.

















Detailed technical answers to common questions about elastomeric foam systems, certifications, and installations.
Explore our open-cell acoustic systems, aluminum-faced sheets, and heavy-duty industrial pipe insulation.
Designed for sound absorption. Open-cell configuration disperses high-frequency sound waves in equipment rooms.
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Designed for refrigeration pipelines. Features low vapor permeability to prevent frosting and ice buildup.
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Suitable for cold climates and sub-zero storage systems. Resists cracking and maintains structural stability.
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Laminated with protective aluminum foil. Provides UV resistance and mechanical protection for outdoor installations.
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Features dual-sided self-adhesive and aluminum facing. Speeds up installation on rectangular duct systems.
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Acoustic panel ceiling tiles designed to reduce echo and reverberation in large public venues and offices.
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Open-cell elastomer designed for machinery enclosures. Dampens airborne sound waves and isolates mechanical noise.
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A standard pipe insulation tube with low thermal conductivity. Provides thermal regulation for water supply piping.
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