Over Four Decades of Thermal Engineering Innovation & Manufacturing Mastery
Founded under the umbrella of the prestigious Jinwei Group (established in 1979 as the pioneer thermal insulation manufacturer north of the Yangtze River), Kingflex Insulation Co., Ltd. has evolved into a premier global manufacturing and trading powerhouse. Located in Dacheng, China—the world-renowned capital of green building materials—Kingflex operates as a high-tech, energy-saving enterprise integrating R&D, automated manufacturing, technical consulting, and turnkey installation support.
Driven by the core mission of "Energy Saving & Carbon Footprint Reduction," Kingflex supplies tailored thermal insulation, cold insulation, and acoustic absorption systems to global EPC contractors, HVAC system integrators, and heavy industrial plant builders.
China Factory 4.0: Production Capacity & Supply Chain Resilience
Leveraging Smart Automation to Deliver High-Volume, Precision-Engineered Insulation Materials Worldwide
5+
Automated Assembly Lines
600,000 m³
Annual Output Capacity
45+ Years
Group Heritage (Since 1979)
66+
Global Export Markets
Multi-Ministry Designated Production Enterprise
Kingflex is recognized as a designated production partner by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry. Our 230 production specialists, guided by 8 Senior Chemical R&D Engineers and supported by 6 International Supply Chain Officers, maintain strict batch-to-batch consistency and zero-defect quality control across all rock wool, NBR/PVC elastomeric foam, and acoustic composite product lines.
Technical Roadmap & Material Science Comparison
Selecting the Optimal Insulation System Based on Thermodynamic and Environmental Requirements
Modern architectural and industrial projects require a nuanced approach to insulation selection. Rock Wool and Closed-Cell Elastomeric Rubber Foam serve distinct thermodynamic functions. The technical comparison below outlines key performance indicators engineered at Kingflex research laboratories:
Performance Parameter
Kingflex Rock Wool Insulation
Kingflex NBR/PVC Rubber Foam
Standard Glass Wool
Primary Material Composition
Natural Basalt Stone & Slag Fibers
Elastomeric Nitrile Rubber / PVC Blend
Molten Glass Fibers
Service Temperature Range
-40°C to +750°C (-40°F to 1382°F)
-40°C to +105°C (-40°F to 221°F)
-30°C to +400°C (-22°F to 752°F)
Thermal Conductivity (λ)
≤ 0.034 - 0.040 W/(m·K) at 25°C
≤ 0.032 - 0.036 W/(m·K) at 0°C
≤ 0.038 - 0.044 W/(m·K) at 25°C
Fire Safety Classification
Class A1 Non-combustible (BS 476 Part 4/7)
Class B1 / Class 0 Self-extinguishing
Class A1 Non-combustible
Moisture Permeability (μ)
Hydrophobic Treated (≥ 98% Water Repellency)
Closed-Cell Structure (μ ≥ 10,000)
Permeable (Requires Vapor Barrier)
Acoustic Noise Reduction (NRC)
NRC up to 0.95 (High Density Panels)
NRC 0.40 - 0.65 (Open/Closed Cell variants)
NRC 0.70 - 0.85
Key Target Applications
High-temp steam lines, fire barrier walls, boilers
HVAC chillers, ductwork, chilled water pipes
Lightweight building walls, attic spaces
Next-Gen Bio-Based Binders
Kingflex is introducing eco-friendly, zero-formaldehyde thermosetting resins in rock wool production, reducing VOC emissions to zero for indoor air quality optimization in LEED v4 certified projects.
Sub-Zero Cryogenic Insulation
Specialized low-temperature elastomeric foam formulations engineered for liquid gas (-160°C LNG) transportation pipelines, preventing thermal stress fracturing and energy loss.
3D Fibrous Orientation
Advanced three-dimensional basalt fiber crimping tech provides outstanding compressive strength (up to 80 kPa at 10% deformation) for high-load industrial roof decks and heavy equipment casing.
Macro-Industry Insulation Solutions
Customized Engineering Packages for Critical Sector Infrastructure
1. Commercial HVAC & Building Services
Condensation control is paramount in central air conditioning systems. Kingflex elastomeric NBR/PVC foam insulation sheets and pre-formed tubes feature a 98%+ closed-cell structure. By preventing surface condensation, they eliminate structural water damage, mold growth, and refrigerant thermal loss in high-humidity commercial towers, hospitals, and cleanrooms.
2. Petrochemical & High-Temperature Processing
Thermal stability at temperatures exceeding 600°C is required for refinery steam mains, distillation columns, and cracking units. Kingflex high-density Rock Wool Insulation Boards and Wire-Reinforced Blankets withstand thermal shock, mitigate Corrosion Under Insulation (CUI) through hydrophobic chemical treatment, and maintain system energy efficiency.
3. Marine, Offshore & Shipbuilding (A-60 Rated)
Marine environments demand non-combustible materials with strict weight limits. Kingflex Rock Wool marine blankets provide certified A-60 structural fire protection for bulkheads and decks. Resistant to salt spray degradation and vibration settlement, they ensure long-term vessel survivability.
4. Power Generation & Heavy Utilities
Boilers, turbine casings, and flue gas ducting require heavy-duty thermal containment. Kingflex Rock Wool Insulation Pipes and blankets maintain structural integrity under continuous thermal cycling, preventing surface temperatures from exceeding safety thresholds (≤ 50°C) for plant personnel protection.
5. Acoustic Control & Architectural Soundproofing
High-density Kingflex Acoustic Rock Wool Panels and open-cell soundproof rubber foams provide balanced noise reduction coefficients (NRC 0.85-0.95). Designed for mechanical rooms, auditoriums, rail transit carriages, and ceiling systems, they suppress low-frequency structure-borne and air-borne noise.
6. Cold Chain Logistics & Refrigeration
From walk-in freezers to refrigerated transport, Kingflex flexible rubber insulation rolls with self-adhesive facings ensure airtight sealing around complex pipe fittings, valves, and tank contours, suppressing thermal bridges.
Global Enterprise Procurement & OEM/ODM Matrix
Flexible B2B Sourcing, Technical Customization, and Streamlined RFQ Processes
B2B Wholesale Procurement Specifications
Kingflex supports tier-1 EPC buyers, regional distributors, and OEM equipment manufacturers with tailored physical specifications:
Rock Wool Density Range: 40 kg/m³ to 200 kg/m³ for tailored structural rigidity.
Rubber Foam Sheet Thickness: 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm, up to 50mm continuous rolls.
Pipe Insulation Inner Diameter (ID): 6mm to 114mm for standard copper, steel, and PVC conduits.
Surface Lamination Facings: Reinforced Pure Aluminum Foil (ALU), Self-Adhesive Acrylic Pressure-Sensitive Backing, Glass Cloth Coating, or UV-resistant PVC Outer Skins.
Automated Production: Batch dispatch from our 5 automated lines with digital quality tracking.
Global Logistics & Port Clearance: Freight handling to major ocean ports across Europe, Middle East, Americas, and Southeast Asia.
International Compliance & Technical Quality Assurance
Tested and Certified to Stringent Global Fire, Environmental, and Safety Standards
Kingflex products undergo third-party laboratory verification to ensure seamless integration into international building codes and industrial regulatory frameworks. Full batch traceability guarantees product reliability over a projected 10 to 15+ year service life.
BS 476 Part 6/7
Class 0 Fire Propagation and Surface Flame Spread Certification for UK & Commonwealth markets.
UL 94 & ASTM E84
V-0 Flame Retardancy & 25/50 Flame/Smoke Index compliance for North American construction.
CE & EN 14304
European Conformity standard for factory-made flexible elastomeric foam thermal products.
REACH & RoHS
Free from CFC, HCFC, Formaldehyde, Heavy Metals, and Halogenated Ozone-Depleting substances.
Verified Quality Certificates & Lab Verification
R&D Department & Manufacturing Facilities
Driven by Innovation and Supported by Expert Thermal Engineers
Our dedicated team is what sets Kingflex apart. With 8 chemical and thermal R&D engineers continuously improving hydrophobic coatings, fiber binding efficiency, and low-density foam matrices, we provide specialized solutions for complex industrial challenges.
Our modern test center is equipped with thermal conductivity apparatus, flammability test chambers, smoke density testers, and mechanical stress analyzer units to ensure every production lot delivered meets exact specs.
Global Track Record & Client Communication Verification
Trusted by Engineers, Contractors, and Wholesalers Across 66+ Countries
Client Feedback & Chat Verification
Direct communication records demonstrate our commitment to transparent quotation, custom packaging, and fast delivery timelines:
Engineering Project References
Kingflex insulation materials are deployed across major municipal HVAC networks, petrochemical refineries, data centers, and commercial skylines:
Factory Workshops & Overseas Dispatch Logistics
Frequently Asked Questions (FAQ)
Technical and Purchasing Insights for Contractors, Procurement Officers, and Distributors
Q1: What is elastomeric rubber foam insulation primarily used for?
Elastomeric rubber foam insulation is engineered primarily for HVAC air conditioning ducts, chilled/hot water pipes, building envelop thermal barriers, industrial cold storage lines, and mechanical acoustic damping. Its high closed-cell ratio (>98%) prevents moisture ingress, stopping surface condensation and piping corrosion.
Q2: Is Kingflex rubber foam and rock wool insulation fire resistant?
Yes. Kingflex Rock Wool is Class A1 non-combustible, capable of operating at up to 750°C without melting. Kingflex NBR/PVC Rubber Foam is certified Class B1 / BS 476 Class 0 flame retardant. It is self-extinguishing upon flame removal, releasing low-toxicity smoke to satisfy international building safety codes.
Q3: What is the fundamental operational difference between rubber foam and rock wool insulation?
Rubber Foam: Flexible, elastomeric, highly moisture-resistant (μ ≥ 10,000), ideal for low to mid temperatures (-40°C to 105°C) such as HVAC chillers, refrigeration lines, and cleanrooms. Rock Wool: Rigid or semi-flexible fibrous basalt mineral wool, capable of extreme high-temperature resistance (up to 750°C), superior acoustic NRC performance, and zero fire load rating for industrial boilers and heavy structural walls.
Q4: Do you provide OEM, custom dimensions, and pre-applied facings?
Yes, we support comprehensive OEM/ODM services. We customize thickness (6mm to 50mm for foam; 25mm to 150mm for rock wool), density (40 to 200 kg/m³), pipe inner diameters, and factory-applied facings (aluminum foil, self-adhesive backing, fiberglass cloth, PVC jacketing).
Q5: What international quality certifications do Kingflex products hold?
Kingflex products are certified under ISO 9001, ISO 14001, BS 476 Part 6/7, CE (EN 14304), REACH, RoHS, UL 94, and ASTM E84, ensuring hassle-free approval by project consultants across global markets.
Q6: Do Kingflex products feature batch traceability?
Yes. Every shipment features digital batch labeling detailing production line, raw material batch, density test result, and manufacturing timestamp to guarantee complete traceability for project quality audits.
Q7: What is the expected service lifespan of Kingflex insulation systems?
Under standard operating conditions, Kingflex insulation products exhibit an operational lifespan of 10 to 15+ years. Their resistance to aging, ozone, UV, and moisture degradation minimizes thermal performance decay over time.
Q8: How do I calculate the required insulation thickness to avoid condensation?
Condensation prevention depends on ambient temperature, relative humidity, pipe fluid temperature, and thermal conductivity (λ). Our 8 R&D Engineers provide precise software simulations to recommend the exact thickness (e.g., 19mm vs 25mm) needed for your climate zone.
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