Explore our highly engineered insulation tubes, sheets, and systems designed to control moisture condensation and minimize thermal energy loss.
A global leader in structural green insulation, specializing in energy conservation, premium elastomeric rubber foam, and rock wool manufacturing.
Established as an energy-saving, environmental-friendly enterprise, Kingflex Insulation Co., Ltd. stands as a premier manufacturing and trading combo for high-performance thermal insulation systems. Our central research and development hubs are nested within China's green-building material capital—Dacheng. We deliver holistic energy solutions across the entire lifecycle, incorporating expert consultation, customized R&D production, installation guidance, and robust post-sale technical support.
Driven by the core concept of "Energy Saving and Consumption Reduction", Kingflex is built upon the robust legacy of the Jinwei Group. Established in 1979 with over 40 years of pioneering manufacturing history, Jinwei Group operates as the very first manufacturer of thermal insulation materials north of the Yangtze River. Today, we empower industries worldwide with systems designed for ultra-low temperature cryogenic environments, acoustic attenuation, and large-scale commercial HVAC structures.
Understanding why standard insulation fails in Southeast Asia, and how Kingflex’s high-density closed-cell structure solves condensation and mold issues.
Malaysia maintains relative humidity levels frequently exceeding 80%. When chilled water lines running at 4°C to 7°C encounter warm, humid ambient air, condensation occurs instantly. Our NBR/PVC elastomeric rubber foam features a closed-cell rate exceeding 98%, completely eliminating water vapor permeability without requiring additional vapor barriers.
With massive heat loads impacting commercial offices and high-rise developments in Kuala Lumpur, Penang, and Johor Bahru, air conditioning accounts for up to 60% of building energy use. With a low thermal conductivity rating (λ ≤ 0.034 W/m·K at 0°C), Kingflex insulation dramatically reduces cooling losses and saves operational costs.
Malaysia's Uniform Building By-Laws (UBBL) demand strict fire performance specifications. Our rubber foam insulation is engineered to comply with BS 476 Parts 6 & 7 Class 0 and UL94 flame-retardant requirements. The self-extinguishing properties prevent vertical flame spread along HVAC shafts and plant rooms.
Engineered for high-performing architectural and industrial demands in tropical zones.
| Physical Parameters | Kingflex Standard Spec | HVAC Application Relevance |
|---|---|---|
| Material Structure | Closed-Cell Nitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) Blend | Prevents moisture penetration, structural decay, and fiber shedding. |
| Density | 40 - 55 kg/m³ | Provides optimal flexural strength, sound absorption, and thermal performance. |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.038 W/(m·K) at 40°C | Maintains low thermodynamic loss, reducing compressor loads. |
| Moisture Resistance Factor (μ) | ≥ 10,000 (DIN 52615) | Resists vapor migration, keeping the insulation dry for its full 15-year lifespan. |
| Service Temperature Limits | -40°C to +105°C (Cryogenic series down to -200°C) | Covers chilled water lines, low pressure steam, and hot water systems. |
| Fire Performance Rating | BS 476 Class 0, GB 8624 Class B1, UL 94 V-0 Rated | Ensures full compliance with international safety codes and local regulations. |
As green building indexes (GBI) in Malaysia and globally focus heavily on embodied carbon and healthy indoor air quality, the insulation industry is evolving. Kingflex is leading this transition through intensive R&D:
By blending modern polymer science with environmental responsibility, we provide sustainable solutions that help projects attain LEED and GBI gold status.
Our commitment to quality control is reinforced by top-tier test equipment, tracking molecular formulations, tensile strength, and real-time fire progression.
Testing rubber formulation degradation patterns over simulated decades of extreme UV and thermal cycles.
Regularly calibrating the lambda value of extruded sheets and pipes to guarantee absolute design specifications.
Ensuring BS 476 Part 6 & 7 flame spread indices align consistently before bulk dispatch.
Our engineering workforce consists of over 230 experienced operations professionals, 8 dedicated R&D materials scientists, and 6 international project coordinators who align delivery schedules with critical construction deadlines in Malaysia.
By blending advanced industrial controls with professional knowledge, we maintain quality standards across batch changes. This guarantees that whether you order 10 cubic meters or a full container load, your product performs predictably.
Bridging the gap between high-volume production in Dacheng and on-site delivery in Klang, Penang, and East Malaysia.
Operating 5 high-speed automated extrusion lines, Kingflex manufactures over 600,000 cubic meters of elastomeric insulation annually. This scale provides a significant cost advantage over local Southeast Asian manufacturers, allowing regional distributors and HVAC contractors to optimize their material budgets without sacrificing product quality.
We are a verified supplier designated by national energy and chemical ministries, guaranteeing consistent availability even during seasonal raw material crunches.
With our proximity to Tianjin Port and major shipping lanes, we offer reliable transit options to Southeast Asian ports. Typical ocean freight transit to Port Klang, Penang, or Pasir Gudang ranges from 10 to 14 days, supported by efficient customs clearance documentation.
All packaging features heavy-duty, moisture-resistant barrier film to protect the insulation rolls and tubes during ocean transit, ensuring they arrive on-site dry, uncompressed, and ready for installation.




Kingflex insulation holds international certifications, meeting the rigorous testing standards of third-party inspection firms.
We work closely with global engineering partners, ensuring clear communications, quick technical feedback, and compliant customs declaration paperwork. Our clients enjoy direct access to factory engineers for custom-designed configurations.
Discover dimensions and specifications for Black Rubber Foam Insulation Sheet Rolls & Tubes.
Perfect for large-diameter pipelines, ventilation ductwork cladding, and flat structural surfaces.
HVAC ductwork, central air conditioning plants, industrial storage vessels, acoustic walls, mechanical cleanrooms, and moisture prevention on chilled system housings.
Pre-extruded tubes designed to slide easily onto copper, steel, or plastic pipe lines.
Copper split refrigerant pipes, chilled water systems, hot water circulation loops, industrial fluid pipes, chemical transportation lines, and domestic cold-water plumbing.
Detailed technical answers for consulting engineers, building contractors, and supply chain managers.
Elastomeric rubber foam insulation is primary engineered for control of condensation on HVAC ductwork, commercial air conditioning piping, cold-storage chillers, process pipelines in manufacturing, and acoustic insulation within drywall assemblies.
Yes. Our rubber foam conforms to strict international flame-retardant standards. It carries a BS 476 Part 6 & 7 Class 0 rating and UL 94 V-0 flame-retardancy standard. In fire situations, the material does not drip or promote flame spread.
Rubber foam has a closed-cell structure, making it highly resistant to moisture absorption and ideal for HVAC and refrigeration systems where condensation is a concern. Rock wool is an open-fiber mineral insulation suited for high-temperature processes, fire containment barriers, and thermal insulation on systems operating above 150°C.
Yes, we support comprehensive OEM and ODM services. This includes custom dimensions, varying thickness ranges, specialized adhesive backings, external protective foils (e.g., ALU foil jackets), and specific densities to meet project-level demands.
Our insulation products have successfully passed testing and certification for BS 476, CE, REACH, RoHS, UL94, and ASTM. This guarantees their safety, quality, and suitability for use in international commercial markets.
Yes. Every single production run is marked with batch numbers on the carton packaging and inner roll liner. This allows us to track raw material quality, furnace temperature logs, and quality control records back to the factory floor.
Kingflex can manufacture NBR/PVC elastomeric rubber foam sheets in standard thicknesses ranging from 6mm up to 50mm, satisfying different thermal insulation requirements.
When installed correctly and protected from direct weathering (or clad when used outdoors), Kingflex insulation systems maintain their rated thermal conductivity and vapor resistance for 10 to 15 years.
In high-humidity areas like Malaysia, the dew point temperature is close to the ambient temperature. To prevent condensation on cold pipes, you need thicker insulation. Our engineers can provide free dew-point calculations to help you select the right thickness for your project's humidity levels.
Review our specialized materials for acoustics, low temperature cryogenics, and standard NBR-PVC pipes.