Aluminum Hydroxide – ATH Flame Retardant & Filler
With three decades of specialized experience in the chemical raw material supply chain, our company is dedicated to the international trade of downstream derivatives of the Aluminum Hydroxide industry. We serve as a reliable bridge between high-end domestic manufacturing and global industrial applications, ensuring consistent quality and supply stability for our partners worldwide.
Aluminum Hydroxide (Al(OH)₃), commonly referred to as ATH or alumina trihydrate (CAS: 21645-51-2), is a versatile inorganic compound widely utilized as a non-toxic flame retardant and functional filler. In its standard form, it appears as a free-flowing white crystalline powder. Characterized by its high whiteness, low soluble iron content, and controlled alkali levels, this material acts as an amphoteric compound, offering excellent chemical stability under normal processing conditions while decomposing endothermically at elevated temperatures.
Standard Aluminum Hydroxide Properties:
Our standard-grade ATH is valued for its safety profile and physical characteristics. When exposed to high heat, it undergoes an endothermic decomposition, releasing water vapor. This process dilutes combustible gases, absorbs heat energy from the combustion zone, and forms a protective char layer. This mechanism provides effective flame retardancy without generating dense smoke, hazardous dripping, or corrosive/toxic gas emissions. Its key attributes include:
High Purity & Whiteness: Suitable for applications where final product appearance is critical.
Low Conductivity: Minimal iron and soluble sodium content ensure stable electrical insulation properties in polymer matrices.
Environmental Safety: Completely non-toxic and odorless, making it suitable for consumer goods and construction materials.
Acid/Alkali Reactivity: Readily decomposes in strong acidic or alkaline environments, allowing for controlled processing or recycling.
Surface-Modified / Activated Aluminum Hydroxide:
To meet the rigorous demands of modern polymer compounding, we also supply surface-treated (activated) grades of Aluminum Hydroxide. Utilizing advanced domestic manufacturing techniques, this product undergoes modification with selected coupling agents and processing aids. This surface engineering results in several performance enhancements:
Improved Dispersion: Enhanced compatibility with organic polymers (such as PE, PP, EVA, rubber) ensures uniform distribution within the matrix, preventing agglomeration.
Narrow Particle Size Distribution: Precise control over particle size contributes to consistent mechanical properties and surface smoothness in finished goods.
Superior Flame Retardancy: Optimized particle morphology and surface chemistry allow for higher loading levels without significantly compromising the physical properties of the base material.
Reduced Bulk Density: Facilitates handling and mixing during manufacturing processes.
Typical Applications:
Our Aluminum Hydroxide products are integral to a wide range of industries:
Wire & Cable: Insulation and jacketing compounds (LSZH - Low Smoke Zero Halogen materials).
Construction: Acrylic solid surfaces (vanity tops), artificial marble, and engineered stone.
Polymer Composites: FRP (Fiberglass Reinforced Plastics), thermosetting resins, and rubber products.
Coating & Sealants: Fire-retardant coatings and industrial paints.
Backed by 30 years of chemical industry expertise, our technical team provides comprehensive support, from sample qualification to bulk logistics. We understand the nuances of international trade and ensure that every shipment meets the stringent specifications required by global manufacturers. Partner with us for a dependable supply of high-quality Aluminum Hydroxide tailored to your specific industrial needs.