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Aluminum Hydroxide (ATH) for Low Smoke Zero Halogen (LSZH) Cable Compounds

Release time:2026-07-30 Visits:0

Environmentally Friendly Flame Retardant Solution for Safer Cable Applications

With the rapid development of modern infrastructure, renewable energy, transportation, and communication systems, the demand for safer and more environmentally friendly cable materials is continuously increasing. Low Smoke Zero Halogen (LSZH) cables have become an important solution for applications requiring high fire safety performance due to their low smoke emission and halogen-free characteristics.

Aluminum Hydroxide (ATH, Al(OH)₃) is one of the most widely used halogen-free flame retardants in LSZH cable compounds. With excellent flame retardant efficiency, smoke suppression performance, and electrical insulation properties, ATH provides reliable fire protection solutions for modern cable systems.

Weifang Wanfeng New Material Technology Co., Ltd. provides high-quality Aluminum Hydroxide products designed for LSZH cable applications, helping customers achieve excellent flame retardant performance while maintaining the mechanical and processing properties of cable compounds.


Why Aluminum Hydroxide is Ideal for LSZH Cable Materials

1. Excellent Halogen-Free Flame Retardant Performance

During combustion, Aluminum Hydroxide undergoes an endothermic decomposition process, releasing chemically bound water and absorbing a large amount of heat.

This process helps to:

  • Reduce combustion temperature

  • Dilute combustible gases

  • Slow down flame propagation

  • Form a protective alumina layer

As a result, ATH effectively improves the flame retardancy of cable materials without producing harmful halogen gases.


2. Low Smoke and Low Toxicity Characteristics

In fire situations, smoke and toxic gases are major safety concerns.

ATH contributes to safer cable performance by:

  • Reducing smoke generation

  • Minimizing toxic gas emissions

  • Improving visibility during evacuation

  • Providing a cleaner combustion process

These advantages make ATH-filled LSZH cables suitable for public and safety-critical environments.


3. Excellent Electrical Insulation Performance

Cable materials require stable electrical properties during long-term operation.

Aluminum Hydroxide offers:

  • Good electrical insulation

  • Low conductivity

  • Stable performance under various conditions

It is widely used in insulation and sheath materials for power and communication cables.


4. Good Compatibility with Polymer Systems

ATH can be incorporated into various LSZH cable formulations, including:

  • Polyethylene (PE)

  • Ethylene Vinyl Acetate (EVA)

  • Polyolefin compounds

  • Thermoplastic elastomers (TPE)

With optimized particle size distribution and surface treatment technology, ATH provides:

  • Better dispersion

  • Improved processing performance

  • Stable mechanical properties

  • Consistent product quality


Applications in LSZH Cable Industry

Aluminum Hydroxide is widely used in the production of:

Power Cables

  • Low voltage cables

  • Medium voltage cables

  • Industrial power cables

Communication Cables

  • Data transmission cables

  • Signal cables

  • Network cables

Transportation Cables

  • Railway cables

  • Metro cables

  • Marine cables

Building and Infrastructure Cables

  • Fire-resistant building wires

  • Public facility cables

  • Safety cables


Advantages of Wanfeng ATH for LSZH Cable Compounds

High Purity and Stable Quality

Our ATH products feature:

  • High Al(OH)₃ content

  • Controlled particle size distribution

  • Low impurity level

  • Excellent batch consistency


Optimized Flame Retardant Efficiency

Our ATH grades are designed to provide:

  • High flame retardant performance

  • Low smoke generation

  • Good mechanical property retention


Customized Solutions

According to different cable formulations and processing requirements, we can provide:

  • Standard ATH grades

  • Fine particle size ATH

  • Surface modified ATH

  • Customized flame retardant solutions


Supporting the Future of Green Cable Technology

As global industries move toward safer and more sustainable materials, LSZH cables are becoming increasingly important in transportation, energy, communication, and construction sectors.

With its excellent flame retardant performance, low smoke characteristics, and environmental advantages, Aluminum Hydroxide is an essential material for next-generation halogen-free cable compounds.

Wanfeng Aluminum Hydroxide – Enhancing Cable Safety with Green Flame Retardant Technology.