Explore our foundational range of elastomeric rubber foam sheets, cryogenic insulation, and high-specification tubes.
In tropical, high-humidity corridors like Singapore, heat gain and surface condensation represent major challenges for building services and industrial refrigeration engineering. As Singapore pushes forward with the BCA Green Mark 2021 master plan, aimed at scaling up super low energy (SLE) and zero-energy edifices, the thermal performance of mechanical ventilation and air-conditioning (MVAC) systems is subject to rigorous regulatory inspection.
Traditional fibrous insulation materials often suffer from moisture absorption under high humidity conditions, leading to thermal degradation, mold colonization, and indoor air quality issues. Closed-cell elastomeric rubber foam sheets provide a superior alternative. With a high resistance to moisture transmission, a low thermal conductivity, and superb fire retardancy, closed-cell NBR/PVC foams ensure permanent thermodynamic control on chilled water pipes, air duct networks, and industrial pipelines.
From complex industrial operations to cleanroom environments, our insulation sheets are designed for high thermal stability.
Prevents condensation issues on cooling ducts while reducing mechanical vibration noise. High structural flexibility allows simple, efficient installation on complicated plenum and rectangular duct configurations.
Specifically engineered NBR and dolefin flexible cryogenic insulation formulas developed to maintain elastomeric flexibility down to ultra-low temperatures, preventing stress fractures.
Utilizes custom open-cell foam structural matrix design for enhanced acoustic damping. Ideal for cleanroom mechanical plant rooms, engine compartments, and commercial theaters.
Our standard closed-cell elastomeric rubber foam sheets exhibit a thermal conductivity (λ) ≤ 0.034 W/m·K at 0°C. Coupled with a water vapor resistance coefficient (μ) exceeding 10,000, our sheets perform well in environments with persistent ambient relative humidity above 85% RH.
Engineered structural attributes of standard NBR/PVC closed-cell elastomeric rubber foam insulation sheets and tubes.
| Performance Characteristic | NBR/PVC Elastomeric Foam | Rock Wool / Mineral Wool | Significance for Singapore HVAC |
|---|---|---|---|
| Thermal Conductivity (0°C) | ≤ 0.034 W/(m·K) | ~ 0.040 W/(m·K) | Lower thermal transmission yields decreased chiller energy consumption. |
| Moisture Permeability (μ) | ≥ 10,000 (Vapor Barrier Built-in) | ~ 1 (Requires external barrier) | Prevents moisture intrusion and thermal degradation under humid conditions. |
| Fire Classification | BS 476 Part 7 Class 1 / Part 6 Class 0 | Non-combustible (Class A1) | Complies with local Singapore Civil Defence Force (SCDF) fire code regulations. |
| Flexibility & Dust Generation | High elastic resilience, zero dust | Low flexibility, fibers can migrate | Crucial for maintaining indoor air quality and cleanroom compliance. |
| Operating Range | -40°C to +105°C | Up to 650°C | Optimal for HVAC air ducts, chilled pipelines, and cryogenic services. |
Standard Dimension Specifications
Pipe Insulation Dimensions
Central air conditioning chilled/hot water pipes, condensate line runs, and distribution air ductworks in retail centers, office high-rises, and clinical complexes.
Process piping networks, petroleum refineries, storage container systems, sound suppression cabinets, and utility boiler feed lines.
Thermal performance and fire protection for offshore oil rigs, ship hulls, engine quarters, railway carriage ventilation, and temperature-controlled logistics complexes.
How our advanced industrial infrastructure ensures consistent material supply, competitive pricing, and certified quality.
Kingflex Insulation Co., Ltd. represents a major manufacturing and trading combo for thermal insulation systems. Our central research, development, and manufacturing facility is located in Dacheng, China—a well-known capital of green building materials. Operating with a focus on energy conservation and environmental responsibility, Kingflex integrates modern research, development, continuous extrusion production, and technical advisory services.
With 5 high-speed, fully automated assembly lines, our annual production capacity exceeds 600,000 cubic meters. This industrial scale has established Kingflex as a designated supplier for major energy, power, and chemical industry programs.
By combining raw material purchasing power with automated formulation control, Kingflex delivers cost-efficient production without sacrificing quality. This structural efficiency is passed on to our Singapore clients through direct factory-gate wholesale pricing, project-specific volume discounts, and reliable logistical coordination.
Thermal Conductivity Analyzer Testing
Microstructural Material Analysis
Automated Foaming Quality Verification
Kingflex was established by Jinwei Group, which possesses a corporate history of more than 40 years. Founded in 1979, Jinwei Group was the first developer and manufacturer of thermal insulation materials north of the Yangtze River.
This deep industrial heritage has allowed us to systematically refine the cell structure and compounding formulas of our synthetic rubber systems. Over decades of operation, we have maintained a strict focus on durability, safety, and performance, helping our clients optimize thermal efficiency across complex global supply chains.
Manufacturing Facilities
Kingflex Legacy Plant
Our employees are amazing in their own right, but together they are what makes Kingflex such a fun and rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service for our clients.
To ensure complete alignment with international standards, Kingflex maintains an engineering division consisting of 8 professional research and development engineers, 6 professional international sales coordinators, and 230 trained production operators.
All materials undergo continuous external laboratory verification to ensure compliance with global fire safety and environmental codes.
BS 476 Parts 6 & 7
Class 0 Flame Spread & Fire Propagation
CE Mark European Conformity
EN 14304 Product Standards Compliance
ISO 9001:2015 System
Quality Management Manufacturing Process
REACH & RoHS Certified
Strict Non-Hazardous & Low-VOC Testing
Our insulation solutions are manufactured without the use of CFCs, HFCs, HCFCs, or other halogen-containing compounds. Kingflex materials are fully compliant with RoHS and REACH regulations, preventing toxicity and minimizing particulate release. This makes them highly suitable for use in high-specification environments, including pharmaceutical labs, cleanrooms, and food processing facilities.
To address the requirements of the global green transition, our material laboratories are focusing on advanced polymer research:
Recognizing the fast-paced nature of the Singapore engineering and construction market, we offer dedicated support for regional projects:
View onsite applications of Kingflex closed-cell rubber foam insulation across diverse building structures.
International Technical Consultation
Factory Audit Verification
Sheet Inspection Lab
Automated Extrusion Line
To satisfy the auditing criteria of international construction groups and EPC contractors, Kingflex has established a comprehensive procurement pathway:
Through decades of operation, Kingflex has built long-term relationships with global buyers, verifying quality requirements and ordering specifications via transparent technical consultations.
Technical guidance and product specifications for engineers, contractors, and procurement managers.
Preserving structural integrity from the extrusion line directly to the container.
Explore our complete product catalog, featuring open-cell acoustic panels, NBR pipe tubing, and elastomeric tapes.
Kingflex
