Direct Factory Supply | Certified High Density Thermal & Acoustic Solutions
Decades of Engineering Excellence, Global Logistics Footprint, and Advanced Polymer Science
Kingflex Insulation Co., Ltd. is a premier manufacturing and trading conglomerate dedicated to thermal insulation products, acoustic dampening systems, and cryogenic polymer barriers. Located in Dacheng, China—the recognized capital of green building materials—Kingflex operates as an energy-saving, environmentally responsible enterprise that seamlessly integrates R&D, automated production, global supply chain logistics, and field engineering consulting.
In line with modern decarbonization targets, Kingflex places energy saving and consumption reduction at its operational core. We provide full-lifecycle insulation solutions comprising technical consultation, specialized R&D customization, certified manufacturing, on-site installation guidance, and post-sale thermal integrity verification to lead the evolution of the global construction and industrial materials sector.
Legacy & Leadership: Originating from the Jinwei Group established in 1979—the pioneer manufacturer of thermal insulation materials north of the Yangtze River—Kingflex carries over four decades of material engineering authority and market trust.
Our workforce is driven by a shared vision of providing consistently first-class thermal efficiency and customer care. Our operational human capital includes:
Comprehensive Architectural & Industrial Performance Analysis for Procurement Engineers
Modern industrial plants, commercial high-rises, cryogenic storage hubs, and district energy networks require precise material selection to balance thermal efficiency, fire safety, moisture resistance, and long-term operating costs (TCO). Kingflex manufactures both high-temperature inorganic Rock Wool Insulation Products and micro-cellular organic Elastomeric Rubber Foam (NBR/PVC) Systems to address the entire thermal spectrum from -196°C to +650°C.
| Product Type | Core Composition | Thermal Conductivity (λ) | Service Temp Range | Fire Resistance Standard | Moisture Resistance (μ) |
|---|---|---|---|---|---|
| Kingflex Rock Wool Board / Blanket | Natural Basalt & Dolomite Fibers | ≤ 0.038 W/(m·K) at 70°C | -40°C to +650°C | Class A1 Non-combustible (BS 476 Pt 4) | Hydrophobic / Permeable |
| Kingflex Elastomeric NBR/PVC Foam | Closed-cell Nitrile Rubber Compound | ≤ 0.034 W/(m·K) at 0°C | -50°C to +105°C | Class 0 / Class 1 (BS 476 Pt 6/7) | μ ≥ 10,000 (Built-in Vapor Barrier) |
| Dienes Cryogenic Elastomeric System | Modified Multi-layer Synthetic Polymer | ≤ 0.031 W/(m·K) at -50°C | -196°C to +105°C | UL94 V-0 Flame Retardant | Complete Vapor Tightness |
By evaluating parameters such as condensation risk, structural vibration, acoustic transmission class (STC), and fire containment zones, Kingflex engineering consultants help procurement departments select the exact specification needed for maximum energy yield and zero operational downtime.
Engineered for Standard HVAC, Heavy Industrial, and Specialized Ultra-Low Temperature Networks
Standard Specs: NBR/PVC Blend | Thickness: 6mm–50mm | Density: 40–55 kg/m³ | Temperature: -40°C to 105°C.
Core Advantages: Over 98% closed-cell rate, high compression resilience (>80%), self-extinguishing flame retardancy, stable thermal conductivity.
Standard Specs: ID: 6mm–114mm | Wall Thickness: 9mm–40mm | High Moisture Resistance Factor (μ ≥ 10,000).
Core Advantages: Prevents pipe freezing, cracking, and condensation drip. Smooth interior finish for quick slip-on assembly during site construction.
Standard Specs: High-density inorganic spun basalt fibers | Fire Rating: Class A1 Non-combustible | Max Temp: 650°C.
Core Advantages: Superior thermal barrier, high sound absorption coefficient, zero toxic smoke emission, water repellent binder treatment.
Standard Specs: Specialized synthetic rubber formulation retaining flexibility at sub-zero extremes (-196°C to +105°C).
Core Advantages: Eliminates low-temperature thermal cracking stress, eliminates multi-layer glass wool requirement, complete vapor seal.
Designated Supplier for National Ministries of Energy, Power, and Chemical Industry
At present, Kingflex operates 5 state-of-the-art continuous automatic assembly lines with an annual output surpassing 600,000 cubic meters. Advanced computerized metering systems ensure uniform expansion, cell micro-porosity consistency, and constant wall thickness across sheet rolls and pre-formed pipe sections.
Every batch produced at our Dacheng manufacturing hub undergoes full digital traceability. From raw polymer rubber compounding, blowing agent injection, temperature-controlled vulcanization, to precision slitting and foil lamination, key physical properties are monitored in real-time by automated laser gauge units.
To support engineering contractors and global procurement agencies, Kingflex products comply with rigorous safety, environmental, and thermal testing benchmarks recognized worldwide:
Certified compliance includes: BS 476 Class 0/1, CE Mark, REACH, RoHS, UL94 V-0, and ASTM C534 / C612 standards.
Proven Performance Across International Airports, Commercial Hubs, and Energy Refineries








Real-time technical clarification, rapid sample dispatch, and customized container loading confirmation.




Pioneering Zero-ODP Eco-Foams, Smart Thermal Jackets, and Next-Gen Fire Barriers
Advancing rubber foam manufacturing through renewable plant-derived polyols and organic blowing agents. Achieving sub-zero VOC emissions to meet stringent BREEAM and LEED v4.1 indoor air quality standards.
Developing dual-layer insulation jackets featuring high-temperature inorganic rock wool core faced with flexible elastomeric outer layers, delivering seamless fire barrier protection up to 1000°C alongside acoustic dampening.
Integrating micro-electronic moisture sensors directly beneath foil facings for real-time detection of Corrosion Under Insulation (CUI) in oil & gas piping, reducing industrial maintenance expenditure by up to 40%.
Expanded Catalog for Global Wholesale, Project Tenders, and Custom Specifications
Expert Guidance on Material Physics, Fire Standards, Customization, and Global Freight Logistics