Explore our leading collection of flexible rubber foam systems, self-adhesive rolls, and technical insulation tubes.
In modern industrial insulation design, the integrity of a thermal system is only as strong as its weakest joint. Modern closed-cell NBR/PVC elastomeric foam systems, widely known across UK building networks as Kingflex, demand ultra-reliable, high-flexibility adhesive formulations. Often termed colloquially as "Flex Glue" by field engineers, these specialist adhesives form a seamless vapor barrier that guarantees thermal efficiency down to cryogenic levels (reaching -40°C to 105°C) while mitigating the risks of Corrosion Under Insulation (CUI). As a premier global manufacturing combo, Kingflex Insulation Co., Ltd. bridges the gap between massive Chinese production capacity and strict UK/European commercial compliance.
Unlike standard construction sealants, industrial flex glue formulations utilized in elastomeric bonding must withstand permanent thermal expansion and contraction cycles. The joints of NBR/PVC foam tubes and rolls are subjected to constant structural movement, relative humidity peaks, and mechanical stress. An incompatible adhesive will dry brittle, crack, and permit ambient vapor to permeate the insulation. Once vapor reaches the underlying metal pipeline, condensation occurs, triggering dynamic thermal loss and systemic corrosion.
By engineering elastomeric adhesives with matching polymer bases (NBR/PVC blends), Kingflex guarantees that the glued joint exhibits the same elasticity, vapor resistance, and flame retardancy as the insulating body itself. Our advanced chemical pathways secure an airtight bond that cures within minutes while remaining permanently flexible.
Comprehensive physical and chemical indexes of Kingflex elastomeric systems and adhesive applications.
| Performance Characteristic | NBR/PVC Elastomeric Sheet Roll | Elastomeric Insulation Tube / Pipe | Industrial Adhesive (Flex Glue Core) |
|---|---|---|---|
| Base Composition | Nitrile Rubber & Polyvinyl Chloride (NBR/PVC) | NBR/PVC Elastomeric Compound | Polychloroprene / Nitrile Polymer Blend |
| Service Temperature Limit | -40°C to +105°C | -40°C to +105°C | -50°C to +110°C |
| Closed Cell Structure | > 98% Rated Cell Structure | > 98% Rated Cell Structure | Not Applicable (Seamless solid interface) |
| Density range | 40 - 55 kg/m³ | 40 - 55 kg/m³ | Approx. 850 kg/m³ (Wet phase) |
| Thermal Conductivity | ≤ 0.034 W/(m·k) at 0°C | ≤ 0.034 W/(m·k) at 0°C | Negligible at recommended thin-film thickness |
| Flame Retardancy | Class 0 (BS 476 Part 6 & 7), UL94 V-0 | Class 0 (BS 476 Part 6 & 7), UL94 V-0 | Self-extinguishing post solvent evaporation |
| Moisture Resistance Factor | μ ≥ 10,000 (Vapor Barrier Built-in) | μ ≥ 10,000 (Vapor Barrier Built-in) | Waterproof elastomeric barrier membrane |
With an extremely high moisture resistance factor (μ ≥ 10,000), our systems eradicate moisture infiltration without the need for external cladding, ensuring thermal stability for decades.
Tested rigorously under the BS 476 British standards, Kingflex systems demonstrate outstanding flame resistance and extremely low smoke toxicity index during fire load trials.
Compression resilience exceeding 80% combined with low thermal shrinkage allows the insulation and adhesive system to move without cracking or delamination.
How Kingflex insulation and high-strength flex glue components meet strict UK infrastructure and design standards.
In high-density commercial developments in London, Birmingham, and Manchester, control of energy waste is prioritized. Kingflex closed-cell sheets, bound with heavy-duty elastomeric adhesive, are standard for sealing ductwork and chilled water loops. By preventing condensation in building ventilation shafts, our insulation protects surrounding drywall and electrical systems from rot and humidity damage.
The UK construction market places intense focus on acoustic performance, governed by Document E of the Building Regulations. Kingflex open-cell acoustic panels coupled with elastomeric insulation sheets reduce ambient machinery noise, structural vibrations, and air-conditioning air turbulence. The combination is widely used in residential high-rises, hotels, and mass transit vehicles.
UK offshore operations and LNG transport networks require materials that can handle extreme temperatures without failure. Kingflex flexible low-temperature insulation systems can tolerate cryogenic environments down to liquid gas levels. Applying the specialized rubber-foam adhesive guarantees that seams are completely impermeable to saltwater vapor and heavy ambient moisture.
Discover the industrial legacy, capacity, and logistical strengths of the Kingflex manufacturing hub.
Founded by the Jinwei Group, which traces its manufacturing legacy back to 1979, Kingflex is the pioneer thermal insulation manufacturer north of the Yangtze River. Situated in Dacheng, the globally recognized capital of green building materials in China, our operations integrate basic R&D, chemical synthesis, continuous extrusion molding, and advanced quality assurance under one facility.
Kingflex operates 5 large-scale, fully automated continuous assembly lines, delivering an annual production output exceeding 600,000 cubic meters of elastomeric rubber foam insulation. This scale guarantees that Kingflex remains a designated enterprise by the Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry, supporting large global projects with uninterrupted supply chains.
With exports reaching over 66 countries, Kingflex manages custom packaging, moisture-resistant shipping barriers, and fast maritime dispatch. Our containers are packed tightly to optimize space while avoiding product compression, ensuring that elastomeric sheets and tubes land at UK ports with their physical properties fully preserved.
Innovation at the chemical level ensures safety, ecological compatibility, and lasting durability.
Kingflex’s dedicated R&D division, featuring 8 professional senior engineers, focuses on continuous advancement in polymer science. Current development programs target next-generation halogen-free formulations, reduced VOC emission adhesive sealants, and higher temperature thresholds.
All Kingflex products are manufactured, tested, and tracked to comply with strict international regulatory frameworks.
To ensure high standards of safety, Kingflex maintains thorough traceability across our manufacturing cycle. Every production batch of NBR/PVC sheets, rolls, and adhesive blends is marked with an identification code, linking directly to raw material data sheets, line operator logs, and lab inspection reports. Our products hold certifications including BS 476, CE, REACH, RoHS, UL94, and ASTM, offering peace of mind to project managers, contractors, and inspectors in the UK and European markets.
Verified feedback and photo evidence from engineering contractors using Kingflex products on site.
Specific data and engineering metrics for our NBR/PVC elastomeric rubber foam sheets, rolls, and pipes.
Our sheet rolls are optimized for broad surface insulation projects including air ducts, chemical storage tanks, and acoustic barriers. They provide excellent sound absorption and thermal protection.
Core Advantages: Foams evenly and fully; closed cell rate over 98%; low moisture absorption; compression resilience over 80%; flame retardant and self-extinguishing.
These pipes are engineered for simple, slide-on or slit-and-seal installation over copper, steel, and plastic lines, ensuring immediate protection from thermal losses.
Core Advantages: Even coating from professional sprayers; compression resilience over 80%; significantly reduces pipe freezing, cracking, and surface condensation.
Behind our fast order fulfillment and consistent quality is our state-of-the-art production facility.
Kingflex offers support from design consultation to post-sale inspection. Our dedicated international team helps builders and engineers choose the right sheet thicknesses, pipe diameters, and adhesive products to meet the unique challenges of each project.
Common questions from engineering contractors and procurement specialists regarding Kingflex elastomeric systems and adhesive applications.
High-performance cryogenic insulation, soundproofing sheets, and specialized rock wool products.
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