Kingflex
Kingflex
Superior flexible sheets designed for massive ventilation air ducts in electronics complexes across Bac Ninh and Binh Duong.
View Specifications →
Closed-cell elastomeric tubing optimized for chilled water pipelines in Vietnam's tropical commercial and residential high-rises.
View Specifications →
Durable, condensation-resistant tubes formulated with optimal elastomer blends for standard industrial pipeline operations.
View Specifications →
Closed-cell structure boards that reduce thermal transmission and eliminate acoustic resonance in HVAC system setups.
View Specifications →Vietnam has rapidly transitioned into a global manufacturing powerhouse. Industrial parks from Hai Phong to Binh Duong are now hosting complex semiconductor cleanrooms, lithium-ion battery production facilities, and advanced data centers. These high-tech facilities require ultra-stringent environmental controls and strict structural fire safety measures.
Modern construction frameworks, such as the Vietnam Green Building Council (VGBC) LOTUS rating system and global benchmarks like LEED, increasingly restrict building materials containing halogenated flame retardants (chlorine, bromine). During a fire, traditional halogenated insulation materials release toxic, corrosive gases (such as hydrogen chloride and hydrogen bromide). These acid gases pose critical risks by causing severe lung damage to building occupants and permanently corroding micro-electronics equipment worth millions of dollars.
Consequently, using certified Halogen-Free Flame Retardant (HFFR) elastomeric rubber foam insulation is no longer just a premium design choice—it is a vital specification for compliance with local and international fire safety guidelines, such as the updated TCVN 06:2021/BXD safety standard.
Protects delicate servers in data centers and high-value semiconductor machinery from corrosive smoke damage.
"Integrating halogen-free thermal systems is essential for achieving compliance with global directives (RoHS, REACH) when exporting products manufactured in Vietnam's high-tech zones."
Understanding global environmental mandates assists plant managers and project engineers in Vietnam with material specifications. Let's compare standard insulation systems with high-safety halogen-free configurations.
Global markets require compliance with EU RoHS Directive 2011/65/EU and REACH. Our halogen-free solutions contain zero heavy metals, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), satisfying international auditing standards for Vietnam-based exporters.
Traditional elastomeric materials rely on chlorinated or brominated additives to pass flame resistance tests. Our material utilizes halogen-free inorganic flame retardants that release only water vapor and non-toxic carbonaceous char when exposed to fire.
Featuring a closed-cell elastomer matrix, these products protect process pipes from moisture ingress and corrosion under insulation (CUI) in highly humid coastal cities like Da Nang and Hai Phong.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in the well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales.
In operation, Kingflex takes energy saving and consumption reduction as its core concepts. We provide insulation solutions through consultations, research and development, production, installation guidance, and post-sale service, leading development across the global building materials industry.
Kingflex was established by the Jinwei Group, which possesses over 40 years of industrial history. Jinwei Group, established in 1979, was the first manufacturer of thermal insulation materials north of the Yangtze River. This decades-long engineering heritage guarantees the reliability and structural integrity of our chemical compositions.
Our team is a tight-knit, talented group with a shared vision of giving consistently first-class service to our clients. Kingflex has 8 professional engineers in our R&D Department, 6 international sales representatives, and 230 workers in the production department.
At present, Kingflex operates 5 large automatic assembly lines, with an annual production capacity of more than 600,000 cubic meters. We are a designated production enterprise by the Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry.
Our products have passed BS 476, CE, REACH, RoHS, UL94, ASTM, and other international certifications, verifying compliance with worldwide regulatory standards.
To provide information gain for structural engineers and design institutes across Ho Chi Minh City and Hanoi, we have outlined the specific testing parameters for our closed-cell halogen-free NBR-based matrix below:
| Physical Property | Standard Reference | Measured Value |
|---|---|---|
| Thermal Conductivity (at 0°C) | ASTM C518 / ISO 8301 | ≤ 0.035 W/(m·K) |
| Moisture Resistance Factor (μ) | EN 12086 / BS EN 13469 | ≥ 10,000 (Closed-cell system) |
| Halogen Content (F, Cl, Br, I) | IEC 60754-1 / EN 50267 | 0% (Undetectable limits) |
| Smoke Density | ASTM E662 / ISO 5659-2 | ≤ 100 (Extremely low particulate emission) |
| Operating Temperature Limit | ASTM C411 | -40°C to +105°C |
| Flammability Rating | UL 94 / BS 476 Class 0 & 1 | Self-extinguishing, zero flaming droplets |
Our formulation is based on a clean nitrile rubber compound. Traditional halogen components are replaced by safe, eco-friendly fire retardants. In a fire, these inorganic components endothermically decompose to absorb heat and release water molecules, cooling the surrounding material and forming a protective char layer.
Corrosive smoke can permanently damage semiconductors. By utilizing Kingflex Halogen-Free insulation, cleanroom operations remain secure even in extreme circumstances, minimizing critical equipment losses.
Specifying HVAC systems in high-rise buildings across Hanoi and HCMC. Ensuring clean air and compliance with fire safety standards (TCVN 06:2021/BXD) by choosing zero-halogen air duct linings.
Providing insulation solutions for high-tech zones in Bac Giang, Thai Nguyen, and Binh Duong, preventing chemical contamination risks in production cleanrooms.
Providing thermal control for seafood storage installations in the Mekong Delta and maritime projects in Hai Phong, designed for high-humidity resistance.
Vietnam’s commitment to achieving net-zero emissions by 2050 has catalyzed industrial transition. Traditional building insulation is being scrutinized for its environmental impact, carbon footprint, and recyclability.
At Kingflex, our technical roadmap focuses on reducing life-cycle carbon footprints. Our production lines utilize foaming agents with Zero Ozone Depletion Potential (ODP) and Zero Global Warming Potential (GWP). By focusing on circular economy principles, we are developing bio-based elastomers to replace fossil-fuel compounds, ensuring that our products remain leading ecological alternatives.
Designed for cryogenic process systems, pharmaceutical cold storages, and liquid gas transfer systems in Vietnam.
View Specifications →
High-flexibility thermal insulation sheets offered at direct factory wholesale prices for large-scale infrastructure projects.
View Specifications →
High-temperature-resistant rock wool blanket, suitable for boilers, heat exchangers, and high-temperature steam lines.
View Specifications →
Engineered with a high moisture resistance factor to resist sweating and water absorption in tropical environments.
View Specifications →
Original Kingflex design, widely specified in commercial and residential central air conditioning pipe structures.
View Specifications →
Provides thermal control, reduces structural transmission, and lowers vibration noise in industrial mechanical rooms.
View Specifications →
Featuring an integrated moisture-proof skin, protecting pipelines from corrosion caused by moisture and condensation.
View Specifications →
Engineered to withstand extreme temperature differentials, preventing thermal shocks in LNG gasifications.
View Specifications →
Engineered cryogenic elastomers designed to maintain insulation properties under extreme temperature limits.
View Details →
Standard closed-cell black elastomeric tube design for cost-effective thermal control applications.
View Details →
High-flexibility thermal insulation sheets offered at competitive factory wholesale rates.
View Details →
Made from premium nitrile-butadiene rubber, featuring a closed-cell design for condensation prevention.
View Details →We export to over 66 countries, ensuring consistent material performance and reliability. Below are verified procurement communications demonstrating the quality checks and customer support we provide.
Material: NBR/PVC Blend & Clean NBR EPDM Formulations
Thickness Options: 6mm, 9mm, 13mm, 19mm, 25mm, 32mm, 40mm, 50mm
Density Range: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
1. Uniform, fine foaming: ≥98% closed-cell rate.
2. Stable low thermal conductivity over long service periods.
3. Excellent flexibility: compression resilience >80%.
4. High safety rating: self-extinguishes upon flame removal.
To ensure long-term thermal insulation and prevent moisture accumulation, proper adhesive seal application is key. For cleanroom specifications, we recommend utilizing halogen-free specialized adhesives that release no volatile compounds. Ensure all joints are sealed tight without gap formations, preserving the moisture-barrier jacket.
Kingflex runs continuous thickness inspections and foaming density controls to maintain consistency. This process minimizes variances across batches, ensuring that thermal properties remain uniform and performance is consistent over the insulation's service life.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound attenuation across commercial and manufacturing structures.
Yes, our rubber foam insulation solutions are fire retardant, meeting the fire protection standards required for commercial developments and complex industrial projects.
Rubber foam is flexible, closed-cell, and moisture-proof, making it ideal for HVAC condensation control and cold piping systems. Rock wool is high-temperature resistant and fireproof, designed primarily for high-heat process piping.
Yes, we support OEM/ODM services to accommodate specific size, thickness, or coating specifications required by your projects.
Our products are certified under BS 476, CE, REACH, RoHS, UL94, and ASTM, ensuring compliance with both regional and global safety standards.
Yes, all Kingflex production batches feature full traceability, enabling raw material and processing parameters to be audited for compliance purposes.
We can manufacture thicknesses ranging from 6mm to 50mm, accommodating diverse project specifications.
With proper installation, the expected service life of our elastomeric foam insulation systems is typically 10 to 15 years.
Halogen-free products eliminate the risk of releasing toxic, corrosive gases during fires. This is critical for data centers, micro-electronics cleanrooms, and public spaces where corrosive smoke poses safety hazards and risks damaging sensitive machinery.
The required thickness depends on ambient temperature, humidity levels, and pipe operating temperatures. In humid tropical environments like Vietnam, thicker walls (19mm to 32mm) are recommended to maintain outer surface temperatures above the dew point.
Get in touch with our engineering team for detailed technical datasheets, international compliance certifications, and competitive wholesale quotes tailored for the Vietnam market.
Send Inquiry Now & Get Pricelist