Kingflex
Kingflex
Direct sourcing from the production floor: high thermal performance and precise tolerances.
Kingflex Insulation Co., Ltd. represents a premiere manufacturing and trading conglomerate dedicated to advanced thermal insulation. Our modern production facilities are strategically located in Dacheng, China—the globally recognized hub for green building materials. Driven by the core mandate of energy conservation and consumption minimization, Kingflex serves as an integrated solutions provider encompassing consultation, research and development, custom production, and hands-on installation support.
Formed under the aegis of the Jinwei Group, which boasts an industrial heritage dating back to 1979, Kingflex stands as a foundational enterprise. As the first major manufacturer of thermal insulation materials north of the Yangtze River, our systems have evolved to serve vital applications across construction, petrochemical extraction, defense installations, aerospace engineering, and global HVAC/R sectors.
Why the closed-cell NBR/PVC matrix outperforms alternative fibrous systems in demanding thermal environments.
Elastomeric rubber foam is a synthetic rubber-based material (specifically formulated using Nitrile Butadiene Rubber blended with Polyvinyl Chloride, or NBR/PVC) featuring a micro-cellular, closed-cell structure. The key to its thermal efficiency lies in the entrapment of dry air within millions of tiny, independent cells. Unlike open-cell or fibrous materials like glasswool or rockwool, Kingflex elastomeric foam does not rely on static air trapped between loose fibers, which is highly susceptible to moisture ingress.
When moisture penetrates an insulation material, the thermal conductivity rises dramatically (water has a thermal conductivity of roughly 0.6 W/m·K, compared to air which is about 0.026 W/m·K). Kingflex elastomeric foam maintains an integrated water vapor barrier with a resistance factor (μ) of ≥ 10,000, ensuring consistent thermal shielding even in high-humidity climates.
| Physical Property / Parameter | Kingflex Standard Spec | Test Standard Compliance |
|---|---|---|
| Density Range | 40 - 55 kg/m³ | ASTM D1622 |
| Thermal Conductivity (λ) at 0°C | ≤ 0.034 W/(m·K) | ASTM C518 / EN 12667 |
| Water Vapor Permeability (μ) | ≥ 10,000 | BS EN 12086 / ASTM E96 |
| Service Temperature Limits | -40°C to +105°C (Up to -196°C with cryogenic formulations) | ASTM C411 |
| Fire Performance Rating | Class 0 / Class 1 / V-0 / HF-1 | BS 476 Part 7/6, UL 94, ASTM E84 |
| Compression Resilience | ≥ 80% recovery rate | ASTM D1056 |
By preventing condensation on chilled water pipes, elastomeric foam stops structural corrosion and mold remediation expenses, delivering low lifetime cost of ownership.
Ideal for cleanrooms, data centers, and hospital ductwork. It releases no fibers or particulates into circulating indoor air streams, safeguarding health standards.
Fully compliant with BS 476 Class 0 and ASTM flame spread ratings. Formulated to self-extinguish without creating dangerous toxic drip behaviors.
How our localized production cluster optimizes costs, lead times, and customization capability.
Dacheng, located in Hebei Province, serves as the epicentre of insulation engineering in China. This location ensures immediate proximity to basic petrochemical feedstocks (NBR, PVC, blowing agents, and fire retardants). This geographical integration reduces logistics overhead and protects Kingflex from commodity price swings.
By operating 5 high-speed, continuous vulcanization foaming lines, we minimize labor variables and guarantee consistency in cell structure. Our automated thickness control systems monitor foam expansion in real-time, holding dimensional variances within a minimal standard deviation.
Located near the deep-water shipping lanes of Tianjin (Port of Tianjin) and Qingdao, Kingflex simplifies oceanic transit logistics. We support container optimization methods to pack maximum product volume per container, lowering unit ocean freight costs for international distributors.
Wholesale Price Structure Optimization: B2B procurers benefit from our tiered factory-direct pricing. Because we control the compounding, extrusion, foaming, and packaging stages in-house, we eliminate intermediate trading margins. Custom OEM requests for specialized wall thicknesses, internal diameters, pre-slitted tubes, or colored outer coatings are managed directly on the line.
From deep sub-zero petrochemical cryogenic pipelines to standard commercial HVAC air distribution systems.
In high-humidity climates (e.g., Southeast Asia, Middle East, Coastal South America), chilled water piping running at 4°C to 7°C will condense ambient moisture rapidly. Our closed-cell rubber insulation (thicknesses ranging from 9mm to 40mm) keeps the pipe surface temperature above the ambient dew point, eliminating condensation issues.
For systems operating between -40°C and -196°C, such as Liquid Nitrogen or Liquefied Natural Gas (LNG) processing facilities, specialized cryogenic elastomeric foam is required. Standard rubbers embrittle at these temperatures; our cryogenic line maintains structural flexibility, cushioning thermal expansion stress.
Using open-cell rubber foam insulation boards (such as 10mm thickness panels), engineers line acoustic enclosures, air compressor rooms, and HVAC plenums. The open-cell structure absorbs sound energy, damping high-frequency and low-frequency vibrations.
Verifiable credentials and testing that guarantee acceptance by municipal inspectors and MEP consultants.
Kingflex houses a specialized R&D department staffed by 8 engineers. We test every production lot for density, thermal conductivity drift, and smoke toxicity indexes. Our raw materials are screened for heavy metals and plasticizers, ensuring full compliance with REACH and RoHS standards.
Furthermore, our materials hold trace markers, providing complete supply chain visibility back to the chemical formulation batch.
Providing engineers and contractors with standard dimensional guidelines for both Sheet Rolls and Pipe Insulations.
Formulated for large-diameter pipelines, duct systems, and flat surfaces.
Designed for sliding over metal tubing or retrofitting slitted pipes.
Verifiable procurement feedback from distributors across Europe, South America, and Southeast Asia.
We work closely with global buyers to meet project timelines, customize packaging, and ensure smooth customs clearing. Our international sales department is staffed by experienced representatives who understand regional customs regulations and building codes.
How the market is responding to environmental regulations and global net-zero infrastructure targets.
Historically, chlorinated and brominated additives were used to meet fire standards. Modern projects demand halogen-free formulations (such as Kingflex HF series) to prevent hazardous smoke emissions in spaces like server rooms and subways.
With smart building controls, monitoring thermal loss is essential. High-resilience elastomeric insulation ensures structural thickness remains consistent for decades, keeping heat loss calculations reliable.
Kingflex is developing advanced recycling initiatives for NBR/PVC scrap generated during slitting. By reusing clean production waste, we lower carbon footprints and support green building credentials like LEED and BREEAM.
Technical guidance and commercial purchasing advice for Kingflex elastomeric systems.
Premium solutions for acoustic insulation, cryogenic systems, and standard HVAC pipelines.
Specific product profiles for industrial plants, mechanical rooms, and civil construction projects.
