Kingflex
Direct manufacturer distribution catalog featuring high closed-cell ratios, ultimate fire-safety grades, and robust structural longevity.
Established as a premier manufacturing and trading conglomerate under the parentage of Jinwei Group (founded in 1979), Kingflex stands as the pioneer of modern thermal insulation systems north of the Yangtze River. Dacheng, China—renowned globally as the capital of energy-saving building materials—serves as the home base for our massive research, development, and state-of-the-art production hub.
For more than four decades, we have aligned our commercial operations with carbon-neutral objectives. Our holistic service encompasses bespoke insulation consultation, advanced R&D product formulation, on-site installation coordination, and rigorous technical post-sale auditing. By driving continuous optimization in energy-saving technology, we deliver reliable barrier performance across chemical processing, HVAC networks, aerospace facilities, and marine engineering applications.
"Our objective is clear: to equip the modern construction, cold chain, and high-temperature processing industries with integrated thermal barriers that directly lower carbon emissions and prevent environmental degradation."
How our products are specifically formulated to withstand the high condensation index, maritime corrosion, and sub-zero freeze-thaw cycles of the North East regions.
High humidity and saline environments trigger swift structural pipe failures. Our closed-cell rubber NBR/PVC formulations prevent water ingress, providing an airtight barrier that stops galvanic corrosion on underlying steel pipelines.
When atmospheric dew points fluctuate, standard materials absorb water, losing up to 90% of their thermal properties. Our NBR/PVC matrix exhibits a water vapor resistance factor (μ) ≥ 10,000, eliminating moisture pathways.
Unlike fragile mineral fibers that fracture during repetitive freezing and thawing, our elastomeric materials preserve elastic recovery rates over 80%, guaranteeing stable physical properties down to -40℃.
Our operational history is deeply connected to the development of insulation materials in northern China. Established by the Jinwei Group in 1979, we were the first factory to manufacture modern thermal barriers in the northern regions. This regional experience has shaped our understanding of how materials perform under extreme weather conditions. Today, our DACheng industrial plant covers large production zones equipped with high-precision automation systems, maintaining absolute consistency across every cubic meter produced.
An engineering look at our ongoing material initiatives, focusing on environmental sustainability and high-performance energy barriers.
We are transitioning our production lines to utilize carbon dioxide and water-based foaming systems. This reduces volatile organic compound emissions, ensuring our products comply with international environmental initiatives like REACH and RoHS.
By infusing silica aerogel particles directly into our NBR rubber matrices, our laboratory team has produced test samples with a thermal conductivity coefficient (λ) of 0.028 W/(m·K) at 0℃. This advancement will allow for thinner profiles in confined industrial installations.
Targeting the liquified natural gas (LNG) transport sector, our engineers are developing high-density, multi-layered elastomeric materials that remain flexible at temperatures down to -196℃ without fracturing under thermal stress.
Review our technical baselines and learn how volume, material configurations, and custom backing options affect wholesale pricing structures.
Kingflex elastomeric systems are manufactured in compliance with international testing regimes, including British Standard BS 476, European CE, and ASTM regulations. The NBR/PVC closed-cell structure is engineered for durability, moisture resistance, and fire safety.
| Property | Black Rubber Foam Sheet | Black Rubber Foam Pipe |
|---|---|---|
| Base Compound | NBR / PVC Blended Elastomer | NBR / PVC Blended Elastomer |
| Thickness Options | 6mm to 50mm | 9mm to 40mm |
| Inner Diameter (ID) | Flat Sheet / Roll (1m/1.2m width) | 6mm to 114mm |
| Core Density | 40 to 55 kg/m³ | 40 to 55 kg/m³ |
| Temperature Range | -40℃ to +105℃ | -40℃ to +105℃ |
| Closed-Cell Ratio | ≥ 98% | ≥ 98% |
Our wholesale commercial quotes are calculated dynamically based on several variables, ensuring optimized cost-efficiency for industrial projects and high-volume distributors:
We operate 5 high-speed, fully automated production lines with an annual output exceeding 600,000 cubic meters.
Our manufacturing facility is located in Dacheng, China—the primary hub for green building materials. This location offers key advantages for global logistics and raw material sourcing:
Integrated Raw Materials: High-purity synthetic NBR rubber, PVC resin, flame retardants, and foaming additives are sourced locally. This proximity minimizes raw material transport costs and insulates us from international market volatility.
Scale & Buffer Capacity: Our large manufacturing footprint allows us to maintain raw material inventories sufficient for 90 days of continuous operation, shielding buyers from supply disruptions.
Logistical Proximity: Located near the Tianjin seaport, our products can go from the production line to sea freight loading within hours. This supports predictable scheduling and reduces shipping times for global buyers.
From standard commercial HVAC systems to specialized cryogenic LNG facilities, our products perform reliably in demanding real-world applications.
We maintain close communication with our customers, providing direct technical support and advice for their project requirements. These exchanges highlight our focus on providing clear, useful answers to project challenges, from thermal calculations to delivery updates.
Our products are tested and certified to meet fire, safety, and performance standards required in global construction and industrial environments.
Every production run of Kingflex insulation is fully traceable. We maintain sample archives for each batch for up to three years. Our internal quality control protocols require hourly density checks, fire-retardancy tests on random samples, and water vapor transmission tests using specialized laboratory equipment.
This systematic testing confirms that our products consistently meet ASTM, BS 476, CE, REACH, and RoHS standards before shipment.
Get detailed technical answers straight from our R&D engineers and supply chain team.
Review the parameters, benefits, and applications for our primary products below.
Standard Dimensions: Thickness 6mm-50mm | Density 40-55kg/m³ | Temperature Range -40℃ to 105℃
Key Advantages:
Primary Applications: Used widely in large central air conditioning duct systems, wall and roof insulation in industrial structures, thermal protection on bulk chemical tanks, and acoustic insulation in generator enclosures.
Standard Dimensions: Thickness 9mm-40mm | ID 6mm-114mm | Density 40-55kg/m³ | Temperature Range -40℃ to 105℃
Key Advantages:
Primary Applications: Installed on central HVAC chilled water lines, domestic plumbing lines to prevent freezing, industrial steam process pipes, and cryogenic pipelines in chemical processing plants.
Our specialized range for cryogenic pipelines, high-temperature mineral wool systems, and specialized industrial HVAC components.
