Kingflex
Direct factory prices & detailed specifications for professional engineering requirements.
Closed-cell elastomeric insulation represents a pinnacle of modern thermal design, composed chiefly of synthetic elastomeric compounds such as Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC). The material's unique structure consists of millions of microscopic, independent gas-filled cells, which effectively block the convective flow of heat and prevent vapor migration.
Compared to traditional fibrous insulations like fiberglass or mineral wool, Kingflex elastomeric foam stands out due to its built-in vapor barrier. Because it contains no open air gaps between cells, moisture cannot bypass the surface, rendering it highly resistant to mold growth and mechanical deterioration caused by condensation.
SEO Insight & Information Gain: For HVAC and refrigeration pipelines, moisture ingress is the leading cause of insulation failure. Elastomeric insulation is defined by its water vapor diffusion resistance index (μ ≥ 10,000), which ensures the system's thermal conductivity (λ = 0.034 W/m·K at 0°C) remains constant over decades.
Annual Capacity (Cubic Meters)
Years of Group Manufacturing History
Global Export Destinations
Professional R&D Engineers
Engineered thermal mitigation across multi-sector infrastructures and harsh industrial environments.
Operating down to -196°C requires specialty cryogenic elastomeric configurations. Standard rubber foam stiffens; hence, Kingflex engineers formulated specific cryogenic solutions to manage structural contraction while retaining complete thermal integrity.
Large-scale municipal and commercial properties rely on duct and pipe insulation to limit thermal leakage. Closed-cell rubber foam prevents exterior air from meeting cold pipes, bypassing the dew point limit perfectly.
Corrosion Under Insulation (CUI) costs industries billions annually. Kingflex formulation eliminates corrosive chlorides, keeping carbon and stainless steel structures insulated and structurally dry.
Direct reference matrix for engineers and project procurement officers to plan logistical budgets.
| Insulation Sub-Type | Material Compounding | Standard Thickness Range | Density Parameter | Service Temp. Limit | Primary Industrial Standard |
|---|---|---|---|---|---|
| Black Rubber Foam Sheet Roll | Premium NBR / PVC base | 6mm – 50mm | 40 – 55 kg/m³ | -40℃ to 105℃ | BS 476 Part 7 Class 1 |
| Black Rubber Foam Pipe / Tube | Extruded NBR / PVC base | 9mm – 40mm (ID: 6-114mm) | 40 – 55 kg/m³ | -40℃ to 105℃ | ASTM E84 25/50 Compliant |
| Cryogenic Low-Temp Elastomer | Modified Alkadiene polymer | 13mm – 50mm multi-layer | 50 – 65 kg/m³ | -196℃ to 105℃ | ISO 15665 / Cryogenic Class IV |
| High Density Acoustic Board | Viscoelastic sound barrier | 10mm – 30mm | 80 – 120 kg/m³ | -20℃ to 85℃ | ASTM C423 Alpha-coeff |
Note on Project Quotations & Pricelists: Exact commercial quotes depend heavily on bulk volumes, custom thickness requests (e.g., 25mm thickness sheet rolls), and raw material market index variations. For accurate FOB Tianjin or CIF port destination prices, contact our sales engineers with detailed specifications.
Kingflex Insulation Co., Ltd. is a leading industrial enterprise combining thermal insulation material research and development with large-scale production. Headquartered in Dacheng, China—widely regarded as the capital of energy-efficient green building materials—our operations are designed to address the challenges of global industrial energy consumption.
Established by the Kingway Group (formerly Jinwei Group, founded in 1979), Kingflex inherited over 40 years of pioneering technical expertise. Historically, the parent group was the first major thermal insulation material manufacturer north of the Yangtze River, paving the way for China's green building standards.
8 professional engineers focusing on customized NBR/PVC polymer formulations.
5 fully-automated, continuous foaming assembly lines operating 24/7.
Ensuring site safety, smoke suppression, and environmental compliance with verified certifications.
Every batch of elastomeric foam leaving the Kingflex assembly line is assigned a unique batch number, laser-printed on the outer casing or sheet backing. This allows our technical service team to track raw material composition, foaming temperatures, and laboratory testing parameters retrospectively, securing the end customer's engineering accountability.
Proven installations in high-demand environments globally.





Specific dimension blueprints for black elastomeric foam sheet rolls and pre-formed tubes.
Kingflex R&D is driving environmental integration by addressing the challenges of energy transition and structural sustainability.
Traditional elastomeric insulations contain chlorine or bromine compounds as fire retardants. Kingflex is testing halogen-free alternatives (HF-series) to guarantee zero corrosive outgassing in high-temperature environments, preventing toxic micro-dust during critical building fire incidents.
To reduce dependency on petrochemical monomers, we are researching agricultural co-products to partially replace NBR/PVC matrices. This reduces the carbon footprint of production without compromising the physical properties of the material.
We are prototyping integrated electronic resistance sensors embedded directly beneath the elastomeric pipe jackets. These sensors notify facilities management of moisture entry prior to physical corrosion onset, enabling predictive maintenance.
Clear, direct answers from our engineering team regarding design and installation requirements.
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