Explore our certified elastomeric foam sheeting and tube systems optimized for thermal performance and severe environmental degradation resistance.
Refrigerant lines linking evaporators to outdoor condenser units are continuously subjected to extreme conditions. Without adequate shielding, solar ultraviolet (UV) radiation triggers photo-oxidation in standard elastomeric nitrile rubber. Over time, this leads to embrittlement, structural cracking, and loss of the closed-cell matrix required for vapor barrier containment.
Once the cellular structure is breached, moisture penetrates, inducing a sharp spike in thermal conductivity (λ-value). This energy drain forces the HVACR compressor to operate continuously to maintain interior set-points, causing premature system fatigue and escalating power costs. High-grade UV-resistant elastomeric insulation from China acts as a durable solar barrier, reflecting radiation and preserving the underlying material matrix.
By preventing condensation on cold pipe surfaces, this specialized insulation also mitigates the risk of Corrosion Under Insulation (CUI) on copper and copper-alloy lines, ensuring long-term system integrity and reliable performance.
The Dacheng industrial cluster in Hebei province, China, is globally recognized as the capital of green building materials. Factories like Kingflex Insulation Co., Ltd. leverage highly integrated supply chains, advanced polymers, and large-scale automated continuous extrusion lines. This integration translates directly into distinct strategic advantages for overseas buyers:
A look at the operations of Kingflex Insulation Co., Ltd., a manufacturing and trading combo for high-end thermal insulation products.
Kingflex Insulation Co., Ltd. operates with a core focus on energy conservation and emission reduction. Located in Dacheng, China, we combine advanced research and development, manufacturing, and international trade in a single workflow. We do not simply sell insulation; we deliver end-to-end solutions, from pre-project energy audits and custom compound engineering to installation guidance and long-term warranties.
Established by the Jinwei Group, which possesses a legacy spanning more than 40 years since its founding in 1979, Kingflex is backed by deep industrial expertise. Our parent group was the first thermal insulation manufacturer established north of the Yangtze River, paving the way for thermal conservation technology across China.
Our operation is powered by a dedicated team of professionals focused on quality and client service. Kingflex employs eight dedicated engineers in our R&D Department, 6 international trade specialists, and 230 technicians and operators across our automated production lines.
We invest in testing facilities to evaluate aging, thermal conductivity, smoke density, and flame spread parameters, keeping our products at the forefront of the industry.
Our commitment to quality is backed by comprehensive certifications for global building codes and environmental standards.
Product consistency and performance reliability are core priorities at Kingflex. Our Quality Assurance protocol features complete batch traceability, assigning a unique identifier to every shipment of NBR/PVC foam roll or tube. This tracking covers the entire production process, including raw polymer mixing, extrusion parameters, oven temperatures, and final packaging checks.
Our testing labs execute real-time evaluations for key metrics: thermal conductivity (λ ≤ 0.034 W/m·K at 0°C), moisture permeation resistance (μ ≥ 10,000), density (40-55 kg/m³), and flammability parameters. This ensures that every delivery complies with target project requirements and safety standards.
A closer look at the physical properties of our premium NBR/PVC elastomeric rubber foam insulation products.
| Material Metric | NBR/PVC Elastomeric Sheet Roll | NBR/PVC Elastomeric Tube / Pipe |
|---|---|---|
| 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm | |
| N/A (Flat sheet roll configurations) | 6mm up to 114mm (Standard HVAC copper pipe sizes) | |
| 40 - 55 kg/m³ | 40 - 55 kg/m³ | |
| -40℃ to 105℃ | -40℃ to 105℃ | |
| ≥ 98% (Ensures low water vapor permeability) | ≥ 98% (Protects against moisture ingress) | |
| BS 476 Class 0 / Class 1, UL94 V-0, ASTM E84 | BS 476 Class 0 / Class 1, UL94 V-0, ASTM E84 |
Available in thicknesses from 6mm up to 50mm, our elastomeric sheet rolls provide thermal protection across larger surface areas, including commercial air ducts, large-diameter chiller pipes, and industrial storage vessels.
Engineered for fast, reliable slide-on or slit-and-seal installation over refrigerant lines, condensate runs, and hot/cold water piping.
A history of reliable performance across diverse sectors, including commercial developments, industrial process plants, and high-performance cryogenic facilities.
Our products are used in varied projects globally, including commercial offices, industrial plants, rail networks, and hospitals. Our focus remains on delivering reliable insulation performance under demanding thermal and environmental conditions.
For applications exposed to high UV levels or harsh weather, we recommend our specialized cladding lines, such as aluminum foil-clad rolls and sheets, to provide durable protection against mechanical wear and solar radiation.
We work closely with global distributors and MEP contractors to ensure seamless supply and reliable project execution. Our logistics team coordinates shipping schedules, custom labeling, and export documentation for efficient delivery.
Engineered to perform in varied settings, from commercial buildings and industrial sites to low-temperature cryogenic systems.
Protects primary chilled water networks, air handler ducts, and VRF/VRV lines in hotels, retail malls, and office complexes. Reduces thermal losses and controls condensation in plenum spaces.
Delivers insulation solutions for processing plants and cold chain distribution centers, helping maintain stable low-temperature environments.
Provides critical insulation for steam piping, process chemical lines, and high-capacity storage vessels in chemical and refinery facilities.
Direct supply from our automated warehouses to clients and construction projects worldwide.
Comprehensive thermal, acoustic, and environmental insulation solutions tailored for modern systems.
Comprehensive technical guidance from our engineering department regarding installation, selection, and specifications of rubber foam insulation.
A1: Closed-cell elastomeric rubber foam is designed for thermal control, sound mitigation, and condensation control on HVAC ducts, chilled water systems, VRF lines, industrial pipeline systems, and commercial cold storage circuits.
A2: Yes. Our formulations incorporate fire retardants to meet international standards, achieving class ratings such as BS 476 Part 6 & 7 Class 0/Class 1, UL94 V-0 flammability classifications, and ASTM E84 compliance.
A3: Rubber foam features a flexible, closed-cell structure that acts as its own vapor barrier, making it suitable for cold line applications and HVAC systems. Rock wool is an open-cell, fibrous material that withstands higher temperatures, making it a common choice for industrial steam lines, hot-water piping, and fire-stop systems.
A4: Yes, we provide full OEM and ODM services. This includes customizing tube wall thicknesses, altering internal diameters, applying specialized protective claddings, and adjusting compound densities to meet specific project needs.
A5: Our products carry certifications and testing approvals from recognized global bodies, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This documentation simplifies building code compliance for international projects.
A6: Yes, we operate a structured quality assurance system. Every batch of raw materials and finished products receives a unique lot number, allowing us to trace manufacturing parameters from raw polymer mixing to final packaging.
A7: We produce elastomeric sheet rolls in thicknesses ranging from 6mm to 50mm, allowing developers to match the insulation to their target thermal resistance requirements.
A8: In standard indoor climates, our closed-cell NBR/PVC insulation typically provides a service life of 10 to 15 years, provided it is installed according to manufacturer guidelines.
Meeting large-scale procurement demands with advanced automation and environmental compliance.
Our factory operates 5 automated continuous extrusion lines, delivering an annual production capacity exceeding 600,000 cubic meters. These operations are managed under ISO 9001 and ISO 14001 guidelines to maintain consistency and quality control.
We work to optimize our raw material consumption and energy use, aligning our processes with modern manufacturing standards for the building materials industry.
For international buyers, sourcing from a verified manufacturer provides key supply chain advantages. We help simplify project coordination by offering comprehensive technical services, including insulation thickness calculations, thermal calculations, and installation training.
Our export team handles documentation, customs compliance, and shipping logistics to ensure deliveries reach project sites or warehouses reliably.
Select from our range of soundproofing, cryogenic-grade elastomeric insulation, and industrial protection products.
Kingflex
