Kingflex
Kingflex
Engineered for cold climate resiliency, low thermal bridging, and complete compliance with European Building Standards (EN 14304).
Denmark is a global pioneer in district heating networks, ultra-low energy building policies, and green architectural design, strictly regulated by the Danish Building Regulations (Bygningsreglementet BR18) and the standard for technical installation insulation DS 452. In this highly sophisticated and climate-conscious market, mechanical insulation is not merely a method to reduce fuel consumption; it is a core mechanism to meet the national target of 70% greenhouse gas reduction.
With severe winters and high coastal humidity across Copenhagen, Aarhus, and Odense, HVAC designs face major condensation challenges. Selecting premium closed-cell flexible elastomeric foams (FEF), like our NBR/PVC blends, is essential to prevent thermal bridging, structural moisture buildup, and long-term corrosion under insulation (CUI) on chilled water pipelines and air handling units.
Additionally, Denmark’s leadership in heat pump technology and ventilation systems (under DS 428 guidelines) demands robust acoustic dampening. High-density, open-cell, and micro-porous elastomeric structures have become the material of choice for quiet mechanical rooms, hospital air distribution, and eco-certified corporate developments.
A detailed thermodynamic analysis demonstrating why closed-cell NBR/PVC elastomer outclasses traditional fiber and wool solutions in moisture resistance and structural durability.
| Insulation Material | Thermal Conductivity (λ at 0°C) | Water Vapor Diffusion Resistance (μ Value) | Flame Class (EN 13501-1) | Moisture Performance | Acoustic Insertion Loss |
|---|---|---|---|---|---|
| Kingflex NBR/PVC Rubber Foam | ≤ 0.034 W/(m·K) | ≥ 10,000 (Built-in Vapor Barrier) | Class B-s3, d0 (Class 0 Rated) | Outstanding (Does not absorb water) | High (Excellent sound damping) |
| Traditional Glass/Rock Wool | ≈ 0.038 W/(m·K) | μ = 1 (Requires external jacketing) | Class A1 (Non-combustible) | Poor (Saturates easily, losing R-value) | Moderate (Absorption only, no decoupling) |
| Polyurethane Rigid Foam (PUR) | ≤ 0.026 W/(m·K) | ≈ 60 - 150 (Limited moisture barrier) | Class E - F (High smoke toxicity) | Moderate (Subject to cell degradation) | Very Low (Transmits vibrations) |
With a vapor diffusion resistance index exceeding 10,000, our rubber foam products create an impermeable barrier. This prevents moisture from reaching cold pipe walls, stopping mold, rust, and thermal degradation before they start.
An evenly-sized, closed-cell micro-structure traps microscopic air chambers. The thermal conductivity (λ) remains stable at ≤ 0.034 W/(m·K) at 0°C, providing constant energy savings over a long operational lifespan.
Meets major fire codes, including BS 476 Part 7 Class 1 and Part 6 Class 0, plus EN 13501 Class B-s3, d0. In a fire, it will not drop flaming particles and produces low smoke density, ensuring critical egress windows remain clear.
How Kingflex leverages high-volume manufacturing, advanced material science, and streamlined logistics to deliver premium thermal systems to Denmark.
Kingflex Insulation Co., Ltd. is a leading manufacturing and trading group specialized in high-performance thermal insulation products. Our research, development, and primary production facility is located in Dacheng, China—a world-renowned cluster for energy-saving green building materials.
Originally established by the Jinwei Group, which holds a proud history dating back to 1979, we were the first thermal insulation manufacturer north of the Yangtze River. Today, we stand as an energy-saving, environmental enterprise that combines research, production, sales, installation consulting, and full customer service.
Operating under strict ecological and waste-reduction policies, Kingflex supports projects worldwide with complete systems for district cooling, commercial HVAC, petrochemical facilities, marine engineering, and cryogenic plants.
Rooted in the pioneer Jinwei Group (founded in 1979), we have spent over four decades driving innovation in thermal insulation technology and manufacturing standards.
Our skilled workforce includes 230 production specialists, 6 international customer support representatives, and 8 dedicated, in-house R&D engineers.
A highly coordinated team guarantees rapid order processing, tailored packaging, full logistics updates, and complete support for project managers.
Inside our R&D Testing Lab and automated production lines in Dacheng.
Danish projects are increasingly prioritizing circular products and decarbonization. To support these environmental goals, our R&D division is actively updating our product roadmap to reduce carbon footprint across the lifecycle. Our research focus is currently centered on two primary paths:
Specially formulated for highly controlled environments, like semiconductor facilities and marine pipelines, where halogenated off-gassing could degrade sensitive hardware or impact health.
Replacing old, high-GWP chemical agents with clean, nitrogen-blown systems. This results in zero ozone depletion potential (ODP) and negligible global warming potential (GWP), lining up directly with Denmark's strict BR18 LCA requirements.
Our manufacturing lines run under strict ISO 9001 and ISO 14001 guidelines, ensuring compliance with global specifications.
ISO 9001 Certification
European CE Compliance
BS 476 Fire Standard
ASTM Fire & Smoke Test
Each batch of Kingflex rubber foam is stamped with a unique tracking code. This allows full visibility of the production date, the specific automated extrusion line used, and the chemical composition details. We provide transparent documentation for Danish engineering projects, including REACH declaration of conformity, RoHS compliance reports, CE declaration, and fire laboratory test reports.
This systematic traceability ensures our materials align with the safety, performance, and environmental expectations of European builders and inspectors.
Direct feedback and order verification records demonstrating our daily support and reliability for international contractors.
From large-scale mechanical ventilation plants to maritime cold-chain infrastructure, we deliver reliable insulation solutions.
| Product Category | Wall Thickness | Inside Diameter (ID) / Width | Operating Range |
|---|---|---|---|
| Black Rubber Foam Sheets | 6mm to 50mm | 1.0m / 1.2m / 1.5m Rolls | -40°C to +105°C |
| Black Rubber Foam Pipes | 9mm to 40mm | 6mm to 114mm ID | -40°C to +105°C |
| Cryogenic Insulation | 13mm to 50mm | Rolls & Tailored Sections | -200°C to +125°C |
All elastomer sheets and pipe sleeves can be ordered with factory-applied adhesive backings, reinforcing aluminum foil facings, or specialized UV-resistant coatings. These upgrades improve mechanical protection and streamline onsite installation in challenging conditions.
Highly detailed technical answers covering thermal dynamics, installation practices, compliance, and material capabilities.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation and sound insulation. In coastal areas like Denmark, it prevents humidity from condensing on cold metal surfaces, which protects systems against mold and premature rust.
Yes, our rubber foam insulation are fire retardant, which meets the safety standards of building and industrial projects. It achieves European Class B-s3, d0 (per EN 13501-1) and BS 476 Class 0 ratings, indicating it will not spread flame or release heavy, toxic smoke.
Rubber foam is flexible, closed-cell and moisture-proof, suitable for HVAC and building insulation; Rock wool is high-temperature resistant and fireproof, suitable for industrial high-temperature pipeline insulation. NBR/PVC elastomer does not require an external vapor barrier, making it much easier and faster to install on chilled systems.
Yes, we support OEM service to meet different project needs. This includes producing specific tube IDs, custom wall thicknesses, pre-cut self-adhesive sheets, and versions laminated with factory-applied foil wraps to suit unique mechanical layouts.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM and other international certifications, ensuring product quality and compliance with global standards. We supply full technical documentation for local building control approvals.
Yes, Kingflex products have traceability. Every batch is stamped with a manufacturing code containing chemical recipe identifiers, line details, and production dates, helping builders maintain detailed project documentation.
We can produce from 6mm to 50mm thickness. Thicker rolls are ideal for low-temperature applications like liquid gas cooling or deep refrigeration, preventing moisture build-up without requiring multi-layer wrapping.
It will be about 10 to 15 years under typical indoor and outdoor conditions. Applying UV-resistant outer wraps or choosing weather-resistant cladding options can further extend this life in demanding climates.
Because the cells are completely sealed, water cannot enter and become trapped against the metal pipe. This eliminates the damp environment needed for chemical and galvanic corrosion on the pipe surface.
The elastomer structure has high internal damping properties, which helps isolate structural vibration. It is highly effective at deadening fluid turbulence noises in HVAC systems and wastewater piping.
All original products, pricing lists, and factory configurations. Select a product card to view detailed specifications.
Contact our sales team today to request custom product catalogs, order physical samples, check technical compliance details, or secure direct factory quotes.
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