Direct from Factory. Certified standards matching Malaysia and global project requirements.
Malaysia's year-round hot and humid climate (averaging temperatures of 25°C to 35°C and relative humidity levels frequently exceeding 80%) poses a severe test for commercial and industrial thermal insulation materials. In HVAC and cooling operations, chilled water pipe systems are highly prone to condensation (commonly referred to as "pipe sweating"). When ambient moisture meets poorly insulated surfaces, condensation forms instantly, leading to dripping ceilings, mould growth, and rust under insulation (CUI) which deteriorates pipes rapidly.
For MEP engineers and developers in Kuala Lumpur, Penang, and Johor, specifying high-performance closed-cell elastomeric rubber foam insulation is essential. The material must offer an incredibly low thermal conductivity (λ ≤ 0.034 W/m·K at 0°C) and a high moisture resistance factor (μ ≥ 10,000) to act as a built-in vapor barrier. Proper thermal insulation controls energy wastage, maintains cold media temperature inside pipelines, and supports the nation's push toward green building initiatives such as the Green Building Index (GBI) and MyCREST frameworks.
A trusted manufacturing & trading combo serving the global building materials industry for decades.
Established by the Jinwei Group, which boasts a rich heritage dating back to 1979, Kingflex is proud to stand on over 40 years of manufacturing lineage. As the first manufacturer of thermal insulation materials north of the Yangtze River, our parent organization paved the way for advanced insulation research and development in China. Today, Kingflex is an energy-saving, environmentally friendly enterprise concentrating on the research, development, production, and sale of advanced insulation materials.
Our operation prioritizes energy conservation and consumption reduction as core values. We provide turnkey global solutions ranging from structural consulting, R&D design, and large-scale manufacturing to technical installation guidance and post-sales engineering support. Kingflex has become a designated production enterprise trusted by national energy, power, and chemical departments.
Pioneering the next generation of insulation systems designed for low carbon emissions and maximum safety.
By blending premium Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC), we optimize the polymer matrix structure. Future R&D concentrates on bio-based plasticizers and zero-halogen formulations to eliminate toxic acid emissions in fire scenarios, exceeding RoHS and REACH directives.
Our continuous extrusion lines are engineered to scale the foaming process to a microscopic level. Standard closed-cell counts are pushed past 98% with smaller cell diameters, bringing down the convective heat transfer inside the foam cells and keeping thermal conductivity consistently low over a 15-year lifecycle.
To resist harsh outdoor ultraviolet exposure in tropical Malaysia and coastal areas, we are deploying factory-applied aluminum-foil composite cladding. This composite provides extreme mechanical tear resistance, complete protection against UV degradation, and a class-leading Class 0 fire surface performance.
Optimized system layouts engineered for the thermal, acoustic, and safety parameters of modern architecture.
Contemporary commercial infrastructure calls for materials that address multiple physical concerns concurrently. High-density structures, such as commercial shopping malls, high-rise condominiums, and hospitals, require solutions that insulate pipelines thermally while mitigating fluid flow acoustics. Kingflex flexible open-cell rubber foam sound-absorbing materials have been formulated to absorb targeted sound frequencies generated by high-velocity airflow in HVAC ducting and water piping networks.
Conversely, for high-temperature boilers, thermal exhaust lines, and fire protection barriers, Kingflex Rock Wool Insulation Boards deliver non-combustible stability. Capable of surviving temperatures exceeding 1000°C without melting, our rock wool systems insulate and isolate thermal spikes, establishing fire compartments that keep structural framing secure during emergencies.
For liquefied natural gas (LNG) terminals, petrochemical facilities, and cold storage units in Port Klang or Bintulu, cryogenic control is vital. At extreme sub-zero temperatures (ranging down to -196°C), standard insulation materials embrittle, crack, and permit ice accumulation which compromises plant efficiency. Kingflex specialized cryogenic elastomeric rubber foam maintains flexibility at low temperatures and isolates mechanical vibration, securing continuous cooling cycles in heavy industrial environments.
With an R&D department staffed by eight professional engineers, Kingflex is constantly validating these formulations against ASTM and ISO testing standards. Working alongside our international sales specialists and 230 factory operators, our technical teams verify that every shipment meets certified dimensional tolerances and material parameters.




Adhering strictly to Malaysian building codes, BOMBA guidelines, and international standards.
For high-rise commercial structures in Malaysia, compliance with the Uniform Building By-Laws (UBBL) is mandatory. Kingflex closed-cell rubber foam insulation holds BS 476 certifications, meeting Class 0 surface spread of flame parameters to ensure that material does not fuel fire growth.
We supply international testing reports, including BS 476, CE, REACH, RoHS, UL94, and ASTM certifications, helping project managers and local MEP contractors secure approvals from the Fire and Rescue Department of Malaysia (BOMBA) and SIRIM QAS International.
As a prominent Chinese manufacturer exporting to Southeast Asia, Kingflex leverages the ASEAN-China Free Trade Agreement (ACFTA). We issue Form E Certificates of Origin, enabling Malaysian importers and wholesalers to clear customs with zero import tariffs, lowering acquisition costs.




Operating from Dacheng, China—renowned as the capital of green building materials—Kingflex utilizes 5 state-of-the-art automated production lines. Spanning massive floor areas, our facility produces an annual output of over 600,000 cubic meters of premium elastomeric insulation. This scale provides immediate raw material purchasing power, keeping our pricing stable despite shifts in global commodity markets.
By automating raw material feeding, temperature curing, and real-time thickness calibration, Kingflex eliminates the variation typical of smaller manufacturing hubs. This manufacturing approach ensures that every sheet and pipe insulation tube has uniform density, cell structure, and fire properties. For wholesale suppliers in Malaysia, purchasing from our centralized facility ensures consistent product quality across large-scale projects.
Engineering parameters for project planners, quantity surveyors, and MEP designers.
| Property / Dimension | Black Rubber Foam Sheet Roll Specifications | Black Rubber Foam Insulation Pipe Specifications |
|---|---|---|
| Base Material Blend | Nitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) | Nitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) |
| Standard Thickness Range | 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, 50mm | 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm |
| Inner Diameter (ID) Range | N/A (Flat sheet form, available with self-adhesive backing) | 6mm up to 114mm (Compatible with standard copper/steel pipes) |
| Density Limits | 40 - 55 kg/m³ (Optimized for thermal pocket preservation) | 40 - 55 kg/m³ (Uniform distribution across pipe curvature) |
| Service Temperature Range | -40℃ to +105℃ (Suitable for cold chilled water & hot steam lines) | -40℃ to +105℃ (Prevents freezing and excessive heat loss) |
| Fire Behavior & Rating | Flame retardant, self-extinguishing, Class 0 / Class 1 certified | Self-extinguishing, low smoke density, non-dripping behavior |
| Moisture Permeability Factor | μ ≥ 10,000 (Excellent vapor barrier resistance) | μ ≥ 10,000 (Protects lines against sweating and corrosion) |




Real feedback from international procurement managers and project partners.
For international buyers sourcing industrial insulation, transparency is essential. B2B purchasing agents must verify that manufacturing partners deliver on physical parameters, dimensional accuracy, and testing certificates. We provide real-time updates from our quality inspectors, offering clear lookups on batch tracking and testing records.
Our sales department maintains open, direct communication channels with partners in the Middle East, Southeast Asia, South America, and Europe. Whether discussing container loading plans, optimizing thickness formulas for specific ambient conditions, or coordinating customized packaging, we keep our customers informed. Here are verified chat exchanges and supply confirmations from our repeat clients:





Tailored solutions designed for extreme thermal conditions, fire isolation, and acoustics.
Flexible closed-cell pipe insulations with high condensation control for VRV air conditioning networks.
Formulated with protective additives to defend copper, steel, and carbon pipelines from rusting under insulation (CUI).
Highly pliable sleeve design ensuring easy installation around complex bends and distribution manifolds.
High-density NBR/PVC pipe covers featuring uniform sizing to simplify joints and taping on chilled water lines.
Cost-effective structural insulation designed to prevent pipe condensation on indoor water systems.
Engineered for high-volume air distribution networks, reducing energy loss in heating and cooling pipelines.
Heavy-duty, factory-engineered insulation assemblies for large-diameter municipal distribution mains.
Formulated to remain flexible and retain physical integrity at low cryogenic temperatures.
Advanced elastomeric system developed to limit boil-off gas (BOG) losses in chemical transport lines.
Multi-layered vapor barrier system designed for low-temperature industrial processes.
High-density, non-combustible mineral wool panels engineered for high-temperature boilers and drywalls.
Flexible, high-temperature resistant mineral fibers designed to fit around large tanks and utility systems.




Understanding port-to-port pathways, cargo space optimization, and structural calculations.
For high-volume thermal insulation materials, shipping logistics are a major cost factor. Because rubber foam and rock wool are low-density, high-volume products, shipping empty air inside hollow pipes must be avoided. Kingflex shipping logistics team specializes in nesting systems, inserting smaller-diameter insulation pipes inside larger ones. This technique maximizes shipping container space, reducing freight costs per cubic meter.
Typically, containers depart from Tianjin Port, China, and arrive at Port Klang or Penang Port, Malaysia, within 12 to 15 days. By using direct maritime shipping lanes, we protect products from the moisture exposure of long-term consolidation hubs, delivering clean, dry insulation ready for immediate installation.




Detailed technical answers to common questions about product performance, standards, and applications.
A1: It is primarily used for commercial and industrial HVAC duct insulation, chilled water piping in air conditioning systems, VRV/VRF line protection, and municipal or chemical piping systems. Its closed-cell design resists moisture absorption, preventing condensation (sweating) on cold surfaces and providing thermal and acoustic insulation in high-humidity climates like Malaysia.
A2: Yes. Our rubber foam insulation includes flame-retardant and smoke-suppressing additives. It complies with international fire safety standards, achieving BS 476 Part 6 & 7 Class 0/Class 1 ratings. It is self-extinguishing and will not fuel flame spread, meeting stringent local building codes.
A3: Rubber foam features a flexible, closed-cell structure with a built-in vapor barrier, making it ideal for refrigeration, HVAC, and condensation control in humid environments. Rock wool is a high-density fibrous mineral material that resists extreme heat (up to 1000°C), making it suitable for firewalls, high-pressure steam boilers, and high-temperature industrial piping.
A4: Yes, we offer comprehensive OEM/ODM services. We customize dimensions, sheet thicknesses (from 6mm up to 50mm), pipe inner diameters (6mm to 114mm), and colors. We also supply factory-applied finishes like self-adhesive backings and UV-resistant aluminum foil coverings.
A5: Kingflex products are tested and certified by international laboratories. Our certifications include BS 476, CE, REACH, RoHS, UL94, and ASTM. This ensures compliance with structural, environmental, and fire safety regulations worldwide.
A6: Yes. Every production run is tracked, from raw chemical mixing to final curing and packaging. Each batch is assigned a unique batch number, allowing us to trace quality control records, lab test reports, and manufacturing logs for every shipment.
A7: We produce sheet rolls in thicknesses ranging from 6mm to 50mm. Thinner sheets (6mm-13mm) are commonly used for small pipes and tight duct geometries, while thicker sheets (25mm-50mm) are used in industrial refrigeration and large chilled water manifolds.
A8: When installed correctly and sized for target ambient conditions, our rubber foam insulation has a service life of 10 to 15 years. For outdoor installations, applying UV-protective coatings or aluminum cladding protects the foam matrix from weathering, extending its service life.




Premium solutions for acoustic insulation, high-temperature protection, and self-adhesive setups.
By coordinating with Kingflex, you access direct wholesale pricing, custom dimensional options, and reliable shipment schedules. Whether you are stocking commercial distribution hubs in Kuala Lumpur or coordinating large industrial cooling contracts in East Malaysia, our team provides the technical support, certification pathways, and logistics management to keep your projects on schedule.
Get in touch with our international sales engineers today to receive comprehensive material specifications, project cost estimates, or custom samples tailored to your project requirements.
















