Kingflex Insulation Co., Ltd. represents a professional manufacturing and trading combo for thermal insulation products. Nestled in Dacheng, China—widely recognized as the capital of green-building materials—our state-of-the-art facility operates at the intersection of energy-saving technologies and ecological preservation. By prioritizing carbon reduction as our operational standard, we provide holistic, project-specific insulation solutions spanning specialized engineering consultations, comprehensive research & development, factory-direct manufacturing, installation guidance, and robust post-sale support.
Established by the Jinwei Group, which boasts a rich heritage dating back to 1979, Kingflex has pioneered thermal insulation technologies for decades. As the very first thermal insulation material manufacturer situated north of the Yangtze River, we have built a long-lasting reputation for quality, supply chain reliability, and engineering expertise.
Unlocking installation efficiency, thermal barrier stability, and long-term acoustic isolation through advanced pressure-sensitive adhesive technology.
Eliminate volatile organic compound (VOC) emissions on the jobsite. Our one-side self-adhesive backing features a factory-applied high-tack acrylic or rubber-based pressure-sensitive adhesive (PSA), reinforced with scrim structural matrix. This ensures uniform adhesive thickness, immediate green strength, and complete coverage without dry spots.
With an even and fully expanded closed-cell rate exceeding 98%, our NBR/PVC elastomeric structure represents a formidable barrier against thermal movement and moisture vapor transmission. This structure locks in dry air, stabilizing thermal conductivity (k-value) over a service life of 10 to 15 years.
Engineered to resist the dynamic mechanical stresses of thermal expansion and contraction. Boasting a compression resilience rate of over 80%, our insulation returns to its nominal thickness even after localized impact, maintaining continuous thermal barrier performance on rectangular air ducts and complex pipe profiles.
Annual Capacity (m³)
Exporting Countries
Skilled Production Technicians
Dedicated R&D Engineers
Engineered thermal systems built to withstand demanding conditions across global commercial, civil, and industrial sectors.
On large commercial air handling systems, condensation is the leading cause of structural mold and thermal degradation. Pre-applied adhesive sheet rolls allow insulation crews to jacket large rectangular ducts in half the traditional time. The airtight bond prevents moisture intrusion, ensuring building envelope efficiency and compliance with modern energy codes (ASHRAE 90.1 / Title 24).
Liquid natural gas (LNG), industrial gas processing, and petrochemical cooling systems rely on absolute vapor barrier insulation. Utilizing our premium cryogenic elastomeric rubber foam sheets, processors establish a dense, resilient cold-retention system. When paired with high-performance adhesive layers, it maintains flexibility under extreme temperature ranges down to -40℃ (and custom systems for deeper cryogenic ranges).
While rubber foam manages cold and HVAC systems, our diversified line includes rock wool thermal insulation options designed to resist high temperature applications. These combined solutions protect piping networks against corrosion under insulation (CUI) and limit thermal energy loss, maximizing production efficiency in refineries, textile mills, and chemical plants.
Weight, flame spread index, and acoustic absorption are crucial on ships and aerospace platforms. Kingflex elastomeric foams are halogen-free, self-extinguishing, and present a low smoke density rating. The integrated one-side adhesive bonds to aluminum, fiberglass, and carbon composites, preventing vibrations and buffering low-frequency equipment noise.
Standard parameters and physical properties engineered for precise project specification and procurement compliance.
| Parameters | Value / Range |
|---|---|
| Material Composition | Premium Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Thickness Options | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
| Thermal Conductivity | ≤ 0.034 W/(m·k) at 0℃ |
| Moisture Resistance Factor | ≥ 1.0 x 10¹⁰ (Value μ ≥ 8000) |
| Parameters | Value / Range |
|---|---|
| Material Composition | Co-extruded NBR/PVC blend |
| Wall Thickness | 9mm, 13mm, 15mm, 19mm, 25mm, 30mm, 40mm |
| Inner Diameter (ID) Range | 6mm to 114mm (Nominal pipe sizes) |
| Density Range | 40 - 55 kg/m³ |
| Fire Protection Rating | Class 0 / Class 1 (BS 476 Part 7/6), B1 (GB 8624) |
| UV & Ozone Resistance | Excellent under typical atmospheric conditions |
As a designated manufacturer for major governmental agencies including the Ministry of Energy and the Ministry of Chemical Industry, Kingflex insulation systems satisfy international standards. Our team of 6 professional international sales engineers coordinate with logistics channels to guarantee supply chain continuity to 66 countries.
Whether dealing with custom density specs, complex dimensional requirements, or demanding environmental clearances (RoHS, REACH, UL 94, BS 476), we provide engineering support, installation manuals, and comprehensive test documentation. Our factory footprint includes 5 fully automated assembly lines to produce up to 600,000 m³ annually, maintaining quick lead times for commercial developments and industrial plant shut-downs.
Where materials science meets environmental stewardship. Our lab constantly iterates on thermal limits, density, and sound attenuation.
Analyzing the behavior of NBR/PVC polymers under shifting thermal profiles to guarantee long-term physical integrity.
Validating exact thermal conductivity ratings (k-value) across sub-zero and elevated operational temperatures.
Ensuring our 98% closed-cell target is uniformly maintained across every batch to secure maximum moisture resistance.
Rigorous verification that our products conform to BS 476, CE, REACH, RoHS, UL94, and ASTM safety standards.
CE Compliance
ISO 9001 System
BS 476 Part 6 & 7
RoHS & REACH Certified
Verifiable satisfaction from industrial supply partners and mechanical installation managers around the globe.
Every commercial application presents localized parameters. High humidity environments, saline atmospheric exposure on marine platforms, and strict municipal building fire codes require custom material densities and laminations. Kingflex provides factory-direct solutions for these variables.
By delivering custom thickness options (6mm to 50mm) and integrating options such as scrim-reinforced foils and specialty pressure-sensitive release liners, we optimize installation speeds, material durability, and thermal system stability. This results in decreased installation time and reduced thermal bridging across seams.
Pioneering the next generation of eco-efficient, high-performance elastomeric compounds.
Our research team is currently developing eco-efficient NBR/PVC alternatives using plant-derived plasticizers and bio-resins. This process aims to decrease our carbon footprint by 35% over the next three years while preserving critical thermal performance and moisture resistance.
We are engineering a proprietary pressure-sensitive adhesive (PSA) chemistry capable of withstanding temperatures from -80℃ up to 130℃. This adhesive formulation will minimize delamination risks on outdoor industrial process piping and cryogenic transfer networks.
By embedding micro-thin conductive grids between the adhesive layer and the elastomeric body, we are designing a smart system to identify moisture pocketing, warning building operators of potential energy loss before condensation compromises the insulation barrier.
Authoritative insights and technical answers concerning Kingflex elastomeric products and application methodologies.
A1: It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure makes it particularly effective in preventing condensation on cold water lines and air ducts.
A2: Yes, our rubber foam insulation products are flame retardant, meeting strict safety standards of building and industrial projects. They comply with Class B1 under GB 8624 and Class 0/1 under BS 476, limiting fire propagation and smoke emission.
A3: Rubber foam is flexible, closed-cell, and moisture-proof, making it ideal for HVAC, cold refrigeration systems, and condensation control. Rock wool, on the other hand, is a mineral-based fibrous material that is highly high-temperature resistant and fireproof, suitable for heavy industrial high-temperature pipelines, ovens, and structural fire barriers.
A4: Yes, we support complete OEM services. We can customize dimensions, colors, densities, adhesive layers, and protective facings (such as aluminum foil or fiberglass mesh) to align with specific project requirements.
A5: Our products have passed BS 476 (Part 6 & 7), CE, REACH, RoHS, UL94, and ASTM. This compliance makes them suitable for international markets and strict industrial environments.
A6: Yes. We use a comprehensive batch coding system. Each production lot is cataloged back to its raw material source and process parameter records, ensuring quality tracing throughout the product's lifespan.
A7: We can produce sheet rolls ranging from 6mm to 50mm in thickness, accommodating both light-duty duct wraps and heavy-duty industrial pipe insulation layers.
A8: Under standard operational conditions, the typical service life ranges between 10 to 15 years, depending on environmental exposure, installation quality, and UV levels.
Kingflex
