Aluminum Hydroxide, also known as ATH (chemical formula Al(OH)₃), is one of the most widely used inorganic flame retardant fillers in modern industry. Due to its excellent thermal stability, non-toxicity, and environmentally friendly characteristics, ATH has become an essential material for manufacturers seeking halogen-free, low-smoke, and safe solutions in plastics, rubber, cable compounds, and construction materials.

Our Aluminum Hydroxide is produced from high-purity raw materials through advanced refining and classification technology. The product features a uniform particle size distribution, high whiteness, low impurity content, and stable chemical performance. These properties ensure excellent compatibility with polymer matrices and consistent processing behavior in various manufacturing systems.

Outstanding Flame Retardant Performance

ATH functions as a physical flame retardant. When exposed to temperatures above approximately 200°C, Aluminum Hydroxide undergoes an endothermic decomposition reaction and releases chemically bound water. This process absorbs a significant amount of heat, reduces the surface temperature of the material, dilutes combustible gases, and forms a protective aluminum oxide layer on the substrate. As a result, flame spread is effectively suppressed and smoke density is reduced.

Because ATH contains no halogens, it does not generate corrosive or toxic gases during combustion. This makes it particularly suitable for applications requiring high safety standards, such as building materials, transportation interiors, and public facilities.

Key Advantages

• Halogen-free and environmentally friendly

• Excellent smoke suppression capability

• Improves fire resistance and safety rating

• High whiteness and good dispersion

• Enhances surface finish and mechanical properties

• Cost-effective functional filler

Applications

Wire & Cable Compounds
ATH is extensively used in LSZH (Low Smoke Zero Halogen) cable insulation and sheathing compounds. It improves flame resistance, reduces smoke emission, and helps cables meet international fire safety standards.

Rubber & Elastomers
In rubber products such as conveyor belts, hoses, seals, and gaskets, ATH enhances fire retardancy while maintaining flexibility and processing stability.

Plastics & Polymer Composites
Widely used in polyethylene (PE), EVA, PVC blends, and thermoset resins, ATH provides flame retardancy and improves dimensional stability and surface smoothness.

Building & Construction Materials
ATH is applied in artificial stone, solid surface panels, coatings, adhesives, and roofing materials. It contributes to fire safety while maintaining excellent appearance and weather resistance.

Coatings & Sealants
Due to its fine particle size and chemical inertness, ATH improves rheology control, anti-settling properties, and durability in industrial coatings.

Quality & Supply

We offer multiple particle size grades, including fine, superfine, and surface-treated Aluminum Hydroxide tailored for specific applications. Customized specifications and technical support are available to meet different processing requirements.

With stable production capacity, strict quality control, and reliable global logistics, we are committed to providing consistent product quality and timely delivery to our partners worldwide.

We welcome inquiries and look forward to supporting your projects with high-quality Aluminum Hydroxide solutions.