Kingflex Kingflex

Halogen-Free Insulation Products Supplier & Suppliers serving the Hanoi Market

High-performance elastomeric thermal and acoustic insulation designed for green buildings, industrial cleanrooms, and high-tech electronic manufacturing facilities in Vietnam.

Hanoi & Global Industrial Dynamics

Vietnam's capital region, Hanoi, is experiencing unprecedented growth in high-tech industrial manufacturing, commercial urban centers, and green logistics hubs. With the expansion of parks like Hoa Lac High-Tech Park and Thang Long Industrial Zone, demand for advanced components is rising. Multinational high-tech firms operating in electronics manufacturing require structural building components that comply with international safety and environmental regulations.

Globally, the building insulation sector is undergoing a shift from basic thermal retention to systemic safety, sustainability, and low toxicity. Traditional insulation materials formulated with halogenated flame retardants (chlorine or bromine) release toxic, corrosive gases when exposed to fire. This poses hazards in enclosed microelectronics cleanrooms, data centers, and multi-story transit hubs.

Key Drivers for Halogen-Free Solutions

  • Zero Halogen Toxicity: Avoids highly corrosive Hydrochloric or Hydrobromic acid gas formation during structural fires, protecting lives and sensitive servers.
  • High Moisture Protection: Hanoi's typical relative humidity averages above 80%. Elastomeric closed-cell structures prevent condensation and mold formation.
  • Regulatory Alignment: Complies with European RoHS/REACH directives and green building rating systems like LEED v4 and LOTUS (Vietnam).

Technology Roadmap & Engineering Specifications

A comparative assessment of performance indexes and thermal dynamics of halogen-free elastomeric compounds.

To achieve high fire safety and low smoke toxicity without halogenated additives, Kingflex integrates advanced phosphorus-nitrogen synergistic flame retardant chemistry and mineral hydrate systems. This results in stable thermal conductivity performance across high temperature ranges.

Performance Index Kingflex Halogen-Free Elastomer Standard NBR/PVC Foam Glass/Rock Mineral Wool
Thermal Conductivity (λ) ≤ 0.034 W/m·K at 0°C ≤ 0.035 W/m·K at 0°C ≥ 0.038 W/m·K at 25°C
Water Vapor Resistance (μ) ≥ 10,000 (Closed Cell Structure) ≥ 7,000 Open Fibrous Structure (Requires vapor barrier)
Smoke Toxicity Emissions Minimal toxicity, no halogenated acid gases Highly toxic HCl & HBr acid smoke Low (Depends on binders used)
Temperature Service Range -50°C to +105°C -40°C to +105°C Up to +650°C
Dust & Fiber Shedding Zero fiber shedding (Cleanroom approved) Zero fiber shedding Fibrous dust emission risk
≥ 10,000
Moisture Barrier (μ-value)
0%
Halogen Content
Class B
BS 476 Part 7 Flammability
Kingflex Manufacturing Facility

About Kingflex Insulation

Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in well-known capital of green-building materials in Dacheng , China. It is an energy-saving environmental friendly enterprise concentrate the research and development, production and sales. In operation, Kingflex takes energy saving and consumption reduction as the core concept. We provide the solutions regarding the insulation by means of consultation , research and development production, installation guidance, and post-sale service to lead the development of global building materials industry.

Kingflex is established by Jinwei Group which is more than 40 years history. Kingway Group is established in 1979. It was the first manufacturer of thermal insulation materials north of the Yangtze River.

Our Production Capacity

At present, Kingflex has 5 large automatic assembly lines, with an annual production capacity of more than 600,000 cubic meters, and has become a designated production enterprise designated by the Ministry of Energy, the Ministry of Electric Power and the Ministry of Chemical Industry.

Our Dedicated Team

Our employees is amazing in their own right, but together they are what makes Kingflex such a fun and rewarding place to work. Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first class service for our clients. Kingflex has eight professional engineers in R & D Department, 6 professional international sales, 230 workers In production department.

Global Export Network

Kingflex thermal insulation products are widely used in construction, petroleum, chemical, national defense, aerospace and other industries. And Kingflex products have been exported to more than sixty-six foreign countries all over the world in the past 16 years.

Strategic Certifications & Standards

CE Certificate RoHS Certificate REACH Compliance Quality Management System Certificate

Standard Product Parameters & Configurations

Available dimensional frameworks and physical properties optimized for mechanical piping systems.

Black Rubber Foam Insulation Sheet Roll

Optimized for large-diameter mechanical systems, central air conditioning ducts, air handling unit boxes, and high-volume industrial process tanks.

Material MatrixNBR / PVC blend (halogen-free optional variants)
Thickness Range6mm - 50mm
Bulk Density40 - 55 kg/m³
Operational Range-40℃ to 105℃

Technical Advantages:

  • Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation.
  • Full closed-cell structure, low moisture absorption, stable long-term thermal conductivity.
  • Compression resilience over 80%.
  • Flame retardant, self-extinguishing off fire.
  • Low thermal conductivity, high moisture resistance factor.

Black Rubber Foam Insulation Pipe

Specifically tailored for quick installation on HVAC copper lines, VRV/VRF commercial air conditioning, chilled water pipes, and condensate line runs.

Material MatrixNBR / PVC blend (halogen-free optional variants)
Thickness Range9mm - 40mm
Inner Diameter (ID)6mm - 114mm
Operational Range-40℃ to 105℃

Technical Advantages:

  • Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation.
  • Professional pipe spraying equipment ensures even coating.
  • Compression resilience over 80%.
  • Flame retardant, self-extinguishing off fire.
  • Low thermal conductivity, high moisture resistance factor.
  • Greatly reduce pipe freezing and cracking risks.

Frequently Asked Questions (FAQ)

Comprehensive guide to applications, standards, and engineering support for the Vietnamese HVAC and Industrial markets.

What is elastomeric rubber foam insulation used for?
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation and sound insulation.
Is Kingflex rubber foam insulation fire resistant?
Yes, our rubber foam insulation products are fire retardant, meeting international and domestic safety standards (like Class 0 / Class 1 BS 476, UL94, DIN 4102) required for high-occupancy commercial and industrial projects.
What is the difference between rubber foam and rock wool insulation?
Rubber foam is flexible, closed-cell and moisture-proof, suitable for HVAC and building insulation; Rock wool is high-temperature resistant and fireproof, suitable for industrial high-temperature pipeline insulation.
Do you provide customized insulation products?
Yes, we support OEM services to meet different project needs. Thickness, internal diameters, roll lengths, and specialized laminated facings (such as Alu-foil) can be modified to match specific engineering calculations.
What certifications do your products have?
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM and other international certifications, ensuring product quality and compliance with global standards.
Does Kingflex products have traceability?
Yes, Kingflex products have complete batch traceability. Every production run is logged, tested for core properties like density and cellular structure consistency, and printed with matching batch markings.
What thickness of Rubber foam insulation sheet roll can you produce?
We can produce from 6mm to 50mm thickness.
What is the service life of rubber plastic pipe and board?
It will be about 10 to 15 years, depending on mechanical wear, environmental UV exposure, and operational temperature profiles.

Global Engineering Reference & Technical Support

Kingflex maintains support teams for major HVAC projects, district cooling networks, and semiconductor cleanroom construction in Southeast Asia. We supply integrated solutions for thermal insulation, cold insulation, and noise reduction for buildings and industries.

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