Kingflex
Explore our top wholesale product lines engineered for thermal stability, flame retardancy, and absolute moisture barrier defense.
The efficiency of commercial cooling systems hinges on minimizing thermal losses and preventing structural mold growth. Kingflex Insulation Co., Ltd. specializes in manufacturing next-generation closed-cell elastomeric rubber foam engineered to mitigate heat transfer and dynamic air-moisture migration. By using high-density NBR/PVC blends, our refrigerant pipe insulations achieve a closed-cell structural density of over 98%, creating a highly effective physical barrier against thermal bridging.
For large-scale construction, HVAC pipelines, and processing facilities, using inferior insulation materials results in thermal failure, condensation dripping, and costly corrosion under insulation (CUI). Our premium elastomer formulas are chemically optimized to guarantee long-term thermal conductivity ($\lambda \leq 0.034 \text{ W/m}\cdot\text{K}$ at $0^\circ\text{C}$) and exceptionally high water vapor resistance factor ($\mu \geq 10,000$). This ensures systems remain completely dry and functionally optimized for a lifecycle of 10 to 15 years.
How vertical integration and specialized raw material sourcing in Dacheng deliver significant cost efficiencies and technical quality to global buyers.
Located in Dacheng, China—the recognized capital of green-building insulation materials. We leverage direct integration with major synthetic rubber refineries and chemical component manufacturers, allowing us to maintain stable production costs and quality during global market fluctuations.
Our internal laboratory features 8 senior R&D chemical engineers specializing in polymer refinement. We customize materials for specific applications, including low-temperature cryogenic processes, highly flexible halogen-free installations, and UV-resistant outdoor systems.
We perform systematic testing for batch traceability. Our products hold certificates for BS 476, CE, REACH, RoHS, UL94, and ASTM, meeting the stringent performance requirements of engineering consultants worldwide.
Founded in 1979 under the Jinwei Group, Kingflex has built a reputation on high quality and innovation. As one of the early manufacturers of thermal insulation materials north of the Yangtze River, we grew from a localized supplier into a large-scale manufacturing and trading group.
Today, our facilities house 5 automated assembly lines, supplying energy-saving solutions to critical national defense, aerospace, chemical processing, and civil HVAC projects. Over the last 16 years of international trade, we have expanded our reach across 66 countries, establishing long-term supplier partnerships with global distributors and MEP contractors.
Review our comparative analysis of primary insulation materials to select the ideal option for your specific operating environment.
| Physical Property | NBR/PVC Elastomeric Foam (Kingflex) | Rock Wool Insulation | Glass Wool Insulation | |
|---|---|---|---|---|
| Operating Temp. Range | -40°C to +105°C (Up to -200°C for cryogenic) | Up to +650°C | -18°C to +400°C | -40°C to +105°C (Up to -200°C for cryogenic) |
| Moisture Resistance ($\mu$) | $\geq 10,000$ (Self-contained barrier) | $\approx 1$ (Requires external vapor barrier) | $\approx 1$ (Requires external vapor barrier) | |
| Thermal Conductivity | $\leq 0.034 \text{ W/m}\cdot\text{K}$ at $0^\circ\text{C}$ | $\approx 0.038 - 0.045 \text{ W/m}\cdot\text{K}$ | $\approx 0.036 - 0.042 \text{ W/m}\cdot\text{K}$ | |
| Flame Spread Index | Class 0 / Class 1 (BS 476 part 7 / UL94 V-0) | Non-combustible (Class A1) | Non-combustible (Class A1) | |
| Flexibility & Installation | High flexibility; easily wraps complex joints | Rigid boards/blankets; requires safety gear | Flexible blankets; requires safety gear | |
| Corrosion Risk (CUI) | Extremely Low (Closed-cell prevents water trapping) | Medium to High (Absorbs leaks) | Medium to High (Permeable to leaks) |
Our factory operates 5 fully automated production lines that continuously extrude elastomeric foam tubes and sheet rolls. This automated process minimizes physical variation, guaranteeing uniform density ($40 - 55 \text{ kg/m}^3$) and consistent insulation performance.
Our NBR/PVC matrix uses clean base polymers compounded with halogen-free flame retardants, anti-aging agents, and mechanical stabilizers. This ensures the finished foam resists degradation when exposed to moisture and mild chemical vapor.
During manufacturing, our temperature-controlled foaming channels expand the cells uniformly. This achieves a closed-cell rate above 98%, limiting water vapor transmission even when the outer surface of the insulation is punctured during installation.
Our systems undergo rigorous testing to comply with international code standards. We maintain open communication and provide transparent QA documentation to our global clients.
Review the physical dimensions and structural properties of our standard insulation rolls and pre-formed tubes.
Designed for large-diameter chilled water pipes, square HVAC ducts, cleanrooms, and industrial tanks. This sheet insulation forms a continuous barrier that resists condensation build-up.
Pre-formed cylindrical tubes designed to fit standard copper and steel HVAC refrigerant lines. Provides thermal insulation that reduces pipeline energy losses.
From standard civil HVAC systems to low-temperature cryogenic gas processing, our insulation products are optimized for diverse operational environments.
Maintains thermal control in chilled water loops, condensate lines, and air distribution ducts within airports, malls, and high-rise office towers. Prevents condensation damage to ceiling systems.
Specially engineered low-temperature systems protect liquefied gas pipelines (LNG, nitrogen, ethylene) at temperatures down to -200°C. Protects against thermal shock and ice formation.
Protects industrial pipelines from chemicals and weathering, reducing corrosion under insulation (CUI) risks in humid factory environments.
Get professional technical answers to common queries regarding elastomeric foam materials, specifications, and installation.
Browse our complete product range, including acoustic liners, cryogenic sheets, and high-performance pipeline insulation.
As a designated manufacturer for major municipal infrastructure and energy ministries, Kingflex Insulation Co., Ltd. handles large-volume shipping logistics for international destinations.
Our sales and engineering teams coordinate custom compound mixing, physical dimensional checks, load planning, and export documentation. This helps reduce lead times and ensure materials arrive on site in compliance with regional codes.
