Kingflex
Optimized NBR/PVC structural materials engineered for thermal consistency and structural durability in sub-zero Russian conditions.
Understanding the engineering demands of working within extreme temperature differentials and strict local standards.
Russia presents one of the most demanding environments on Earth for thermal insulation materials. Engineers must navigate the sharp contrast between intense, wet summer heat and severe sub-zero winter temperatures, which can plummet to -40°C in Moscow and past -50°C in Siberia and the Far East. These extreme conditions demand insulation solutions with outstanding structural integrity, a stable closed-cell composition, and durable anti-aging properties.
Traditional open-cell insulation materials frequently absorb ambient humidity under high temperature swings, which degrades thermal performance and triggers Corrosion Under Insulation (CUI). Kingflex NBR/PVC closed-cell elastomeric rubber foam insulation addresses this issue directly. The material provides a built-in vapor barrier to block moisture migration, keeping the underlying metal pipelines clean, dry, and protected.
Beyond climate challenges, compliance with Russian building codes and safety regulations is essential. Infrastructure and commercial projects require thermal insulation to meet SP 61.13330.2012 (Thermal Insulation of Equipment and Pipelines) and align with GOST R 56729-2015. Kingflex elastomeric foam solutions are engineered with advanced fire-retardant chemistry, offering flame protection that aligns with international fire safety certifications (including UL94 and BS 476) to meet the requirements of Russian building inspections.
Retains its elasticity and structural stability without cracking down to -40°C in standard applications, and handles cryogenic conditions down to -200°C.
A closed-cell structure with a high water vapor resistance coefficient (μ ≥ 10,000) prevents condensation and protects pipelines from CUI.
Formulated with self-extinguishing compounds to resist flame spread and smoke development, satisfying strict commercial fire codes.
Customized thermal solutions engineered for Russia's key commercial and industrial sectors.
District heating systems (Teplosnabzhenie) are a core part of urban infrastructure in cities like Moscow, St. Petersburg, and Novosibirsk. These systems rely on high-efficiency pipeline networks to deliver heat reliably. Our NBR/PVC elastomeric rubber foam pipes reduce thermal energy loss across long distribution paths.
Russia's oil and gas initiatives in the Yamal Peninsula and Arctic regions operate in extreme, freezing conditions. Transporting liquefied natural gas (LNG) requires specialized cryogenic insulation that can handle severe cold while retaining its flexibility.
Industrial refineries in regions like the Urals process chemical products under complex, variable conditions. These plants require insulation materials that provide excellent thermal barrier performance along with chemical and corrosion resistance.
Bypassing European logistics bottlenecks with raw material security, manufacturing volume, and direct overland rail transport.
As European supply pipelines face ongoing delays, Russian contractors and procurement teams need reliable supply alternatives. Kingflex offers direct manufacturing capacity based in Dacheng, China—a hub for green building materials. This strategic location ensures consistent production and reliable supply lines to Russia.
We operate 5 large automatic assembly lines, generating an annual capacity of over 600,000 cubic meters. This scale allows us to fulfill large orders for district heating networks or commercial HVAC installations without supply-chain delays.
Additionally, direct overland shipping via the China-Europe Railway Express (New Silk Road) connects our Hebei facility to major Russian terminals like Moscow, Novosibirsk, and Vladivostok in 12 to 15 days. This logistics route avoids maritime delays and customs bottlenecks at sea ports, ensuring projects stay on schedule.
Advancements in polymer structures, flame retardants, and thermal efficiency metrics.
At Kingflex, we focus on continuous research and development to improve our thermal insulation performance. Our R&D team works to refine NBR/PVC polymer formulations for increased durability. Our development focus centers on:
| Property / Engineering Index | Kingflex Standard Spec Range | Test Standard Compliance |
|---|---|---|
| Base Composition | Acrylonitrile Butadiene Rubber (NBR) / Polyvinyl Chloride (PVC) Blend | GB/T 17794 |
| Thermal Conductivity (λ-value) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.038 W/(m·K) at 40°C | ASTM C518 / ISO 8301 |
| Water Vapor Resistance Factor (μ) | ≥ 10,000 | BS EN 12086 |
| Fire Safety Rating | Class 1 / Class 0, Self-Extinguishing, Low Smoke Emission | BS 476 Part 6 & 7 / UL 94 V-0 |
| Core Service Temperature Range | -50°C to +105°C (Specialized grades support -200°C) | EN 14706 / ASTM C411 |
| Density Profile | 40 - 55 kg/m³ (Consistent distribution) | ASTM D1622 |
Over 40 years of manufacturing experience, engineering expertise, and quality commitment.
Kingflex Insulation Co., Ltd. is a specialized manufacturer and exporter of thermal insulation products. Our research, development, and primary production facility is located in Dacheng, China, a recognized manufacturing base for energy-saving materials.
Our business, established by the Jinwei Group, builds on a manufacturing history dating back to 1979. As the first major manufacturer of thermal insulation materials north of the Yangtze River, we focus on delivering energy conservation and consumption reduction solutions.
Today, our R&D and operations teams work together to provide consultation, technical support, installation guidance, and customer service to clients worldwide.
Jinwei Group begins operations, establishing the first industrial insulation production facility north of the Yangtze River.
Kingflex begins exporting insulation products globally, obtaining European CE, RoHS, and BS 476 fire certifications.
Installs 5 large automatic continuous extrusion lines, increasing annual output to over 600,000 cubic meters.
Enhancing supply operations for the Russian market to support critical local district heating and HVAC installations.
Verified quality standards to support compliance requirements in local commercial projects.
Answers to common engineering questions regarding the application and handling of elastomeric insulation in cold climates.
Our material is manufactured with a balanced NBR/PVC polymer ratio, adding plasticizers that lower the glass transition temperature. This helps prevent cracking and maintains insulation performance under severe winter conditions.
Yes, our insulation meets fire safety ratings like BS 476 (Class 0 and Class 1) and UL94 V-0, which align with local requirements for flame retardancy and low smoke emissions.
NBR/PVC features a closed-cell structure that prevents moisture absorption. Rock wool can absorb moisture under freeze-thaw cycles, which degrades its insulation value. Elastomeric foam maintains its thermal conductivity profile without requiring an external vapor barrier.
Yes, we support full OEM and ODM services. We produce sheets and rolls in thicknesses from 6mm to 50mm, and pipes in diameters up to 114mm (ID) with custom wall configurations to suit specific projects.
When installed correctly with appropriate exterior protective coatings (like UV-resistant cladding), our products offer a service life of 10 to 15 years.
Yes, our quality management system ensures full raw-material and manufacturing-run traceability for every batch, which is documented in our testing logs.
We utilize direct rail freight via the China-Europe Railway Express, allowing transport from our factory to Russian distribution hubs in 12 to 15 days.
Yes, our cryogenic-grade elastomeric insulation is formulated to remain functional down to -200°C, providing thermal stability for LNG transport lines.
Technical parameters for planning and purchasing.
Material Composition: High-density NBR/PVC elastomeric matrix
Thickness Range: 6mm to 50mm
Density Profile: 40 - 55 kg/m³
Operating Temperatures: -40℃ to 105℃
Core Performance Features: Flexible closed-cell structure, built-in vapor barrier, self-extinguishing flame properties.
Material Composition: High-density NBR/PVC blend
Thickness Range: 9mm to 40mm
Internal Diameter (ID): 6mm to 114mm
Density Profile: 40 - 55 kg/m³
Core Performance Features: Consistent extrusion thickness, high tensile elasticity, protects water pipes from freezing and cracking.
Select from our range of standard and specialized elastomeric insulation solutions.
