Explore our industrial-grade elastomeric rubber foam sheets, cryogenic pipe insulation, and soundproofing boards engineered for high-humidity tropical climates.
Understanding the critical role of closed-cell elastomeric rubber foam insulation in tropical high-humidity zones.
In Singapore’s tropical climate, characterized by year-round high ambient temperatures (averaging $30^\circ\text{C}$ to $32^\circ\text{C}$) and constant high relative humidity ($80\%$ to $90\%$), insulation is not merely about temperature control—it is a critical defense against moisture condensation, structural corrosion under insulation (CUI), and severe energy loss. For commercial HVAC chillers, mechanical ventilation systems, data centers, and pharmaceutical facilities, maintaining the integrity of thermal barriers is vital.
Singapore’s building regulations, governed by the Building and Construction Authority (BCA) and standardizing bodies like the Fire Safety and Shelter Department (SCDF), place strict demands on the efficiency and safety of insulation materials. Systems must comply with Singapore Standard SS 553 (Code of practice for air-conditioning and mechanical ventilation in buildings) and achieve optimal thermal conductivity ($\lambda$) to ensure Green Mark certification compliance. Implementing high-performance NBR/PVC closed-cell rubber foam sheet insulation prevents the dew point from shifting into the core insulation layers, effectively mitigating moisture migration.
Open-cell structures, such as standard glass wool or low-density open foams, are highly susceptible to moisture ingress in tropical environments. When water vapor enters the insulation, the thermal conductivity rises dramatically because water has a thermal conductivity approximately 25 times higher than air. This leads to system sweating, dripping ceilings, mold growth, and eventual failure of the HVAC system. Kingflex NBR/PVC elastomeric rubber foam insulation features a completely closed-cell matrix, locking out moisture vapor permanently without requiring external vapor barriers.
Safety is the primary metric for construction projects in Singapore. Kingflex rubber plastic plates and pipes are systematically tested to comply with international standards including BS 476 Part 6 (Fire Propagation) and Part 7 (Surface Spread of Flame), ensuring a Class 0 and Class 1 safety profile. In the event of fire exposure, our NBR/PVC composite materials release minimal smoke and are self-extinguishing, meeting the stringent standards laid out by the Singapore Civil Defence Force (SCDF) for structural materials.
Detailed architectural parameters for mechanical engineers and B2B buyers designing commercial HVAC, plumbing, and process line applications.
| Insulation Parameter | Kingflex Standard Sheet Roll Specification | Kingflex Standard Pipe Specification |
|---|---|---|
| Base Composition | NBR/PVC Elastomeric Foam (Nitrile Butadiene Rubber / Polyvinyl Chloride) | NBR/PVC Elastomeric Foam (Nitrile Butadiene Rubber / Polyvinyl Chloride) |
| Product Thickness Range | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm |
| Inner Diameter (ID) | N/A (Flat sheet/roll form) | 6mm to 114mm (Accommodates standard copper and steel pipes) |
| Density Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Operating Temperature | -40℃ to 105℃ (Up to -200℃ for Cryogenic Systems with Multi-Layer configurations) | -40℃ to 105℃ (ULT cryo line applications require specific density adjustments) |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0℃ | ≤ 0.038 W/(m·K) at 40℃ | ≤ 0.034 W/(m·K) at 0℃ | ≤ 0.038 W/(m·K) at 40℃ |
| Moisture Resistance (μ) | ≥ 10,000 (Built-in vapor barrier design) | ≥ 10,000 (Continuous closed-cell structure) |
| Elastic Resilience | Compression resilience over 80% under standard testing load | Highly flexible, prevents cracking during structural thermal expansion |
| Safety & Fire Rating | Class 0 / Class 1 (BS 476 Part 6 & 7), UL94 V-0 Certified | BS 476 Approved, CE, REACH, ROHS, ASTM Compliance |
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for high-performance thermal insulation products. Our core research, development, and state-of-the-art production department is located in the well-known capital of green building materials in Dacheng, China. As an energy-saving, environmentally friendly enterprise, we concentrate on the research, development, production, and global sales of advanced elastomeric solutions.
In operation, Kingflex takes energy saving and consumption reduction as its core concept. We provide turnkey insulation solutions via technical consultation, R&D production, installation guidance, and dedicated post-sale services to lead the global green building materials industry.
Kingflex is established by the Jinwei Group, which holds a historic background of more than 40 years. Founded in 1979, Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for modern industrial insulation standards across Asia.
Currently, Kingflex operates 5 large-scale automatic assembly lines with an annual production capacity exceeding 600,000 cubic meters. Because of our scale and quality assurance, Kingflex has become a designated production enterprise certified by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Our thermal insulation systems are widely utilized across building construction, petroleum, chemical processing, national defense, marine engineering, and aerospace industries. Over the past 16 years, our products have successfully reached over 66 foreign countries and regions, including Singapore, Malaysia, Indonesia, and across Europe and the Americas.
Our deep engineering expertise guarantees the reliability of our thermal solutions in critical environments.
Our dedicated R&D team continuously innovates to refine thermal conductivity rates and moisture vapor permeability factors. We employ state-of-the-art foaming ovens and raw material feeding systems to ensure absolute uniform cell distribution across sheet rolls and pipes.



Our team shares a vision of giving consistently first-class service to B2B clients. Kingflex employs 8 professional engineers in our R&D Department, 6 international sales specialists experienced in complex shipping logistics and customized OEM documentation, and 230 skilled production professionals.






Adapting high-performance elastomeric insulation systems to local engineering requirements and industrial supply pathways.
Singapore relies extensively on district cooling setups, where chilled water pipes are routed underground and through massive building shafts. Preventing energy leakage and pipe condensation requires exceptional thickness control. Our NBR/PVC sheets and pre-formed tubes are perfect for chillers, air handling units (AHUs), and fan coil units (FCUs) under SS 553 regulations.
As a global data center hub, Singapore enforces strict limits on energy usage effectiveness (PUE). Liquid cooling systems and cold aisle containment units require heavy-duty thermal insulation to eliminate dew formation, protecting highly sensitive electronic servers from water dripping. Our class-certified halogen-free rubber foams are ideal for cleanroom environments.
With major shipyards in Tuas and Jurong, marine vessels, FPSOs, and oil rigs built in Singapore demand insulation that can withstand harsh saltwater environments. Kingflex closed-cell rubber sheet offers excellent corrosion resistance and stands up to environmental degradation from weathering, UV exposure, and ozone.
For ultra-low temperature (ULT) facilities, gas liquefaction lines, and petrochemical refineries in Jurong Island, our specialized flexible ultra-low temperature cryogenic insulation systems prevent cold loss down to -200℃, avoiding thermal stress cracks on critical process piping.
Technical advantages, application guidelines, and installation standard practices.
Our flat sheet rolls are specifically formulated to insulate large-diameter pipes, ductwork, rectangular air distribution systems, tanks, and vessels. With NBR/PVC composition, it features highly consistent wall thickness from 6mm up to 50mm.








Designed for fast and tight slip-on installation for copper piping and carbon steel water lines. Pre-split configurations with self-sealing adhesive options are available to drastically lower on-site mechanical labor costs.
Take a closer look at our automatic manufacturing lines, warehouse inventory, and global shipping logistics.












Adapting manufacturing parameters to align with global environmental requirements and local low-VOC guidelines.
Kingflex is transitioning away from older hydrocarbon blowing agents in favor of advanced nitrogen-infused processes. This ensures our elastomeric foam has Zero Ozone Depletion Potential (ODP) and Zero Global Warming Potential (GWP), meeting European and Singapore BCA Green Mark expectations.
To improve Indoor Environmental Quality (IEQ), our materials undergo strict thermal baking post-extrusion. This step limits the outgassing of volatile organic compounds (VOCs), making our products highly suitable for sensitive facilities like hospitals, schools, and microchip fabs in Singapore.
Transparent B2B order flow, customer chats, and complete material traceability documentation.
At Kingflex, we maintain complete production traceability for all shipments sent to Singapore. Below are screenshots of direct chats with B2B customers, showing our commitment to reliable delivery, quality packaging, and certification support.





How wholesale pricing for elastomeric rubber foam sheets is determined for Singapore and international markets.
To keep wholesale costs highly competitive, Kingflex uses a structured pricing model determined by project volume, chemical formulations (such as specialized fire-retardants or antimicrobial agents), and packaging types (standard boxes, plastic wraps, or adhesive backing). Shipping to Singapore port (FOB Tianjin/Qingdao or CIF Singapore Port) typically takes 10 to 14 days, providing quick supply options for fast-tracked mechanical projects.
Variables affecting pricing include:
Everything you need to know about our products, certification, compliance, and B2B ordering.
Select your required model and download certified data sheets, testing reports, and wholesale price quotes.