About Aluminium Hydroxide Powder

Aluminium Hydroxide ATH Powder | Aluminium Trihydrate | Flame Retardant Grade

Product Description

Aluminium Hydroxide Powder (ATH), also known as Aluminium Trihydrate, Alumina Trihydrate or ATH, is a fine white inorganic mineral used as a flame-retardant filler, smoke suppressant and functional filler in plastics, PVC, rubber, cables, adhesives, paints, coatings and other industrial applications.

Lexen Industries & Minerals supplies high-purity Aluminium Hydroxide ATH Powder in industrial grades with controlled particle size and specifications according to application requirements. ATH is widely used in polymer and compound formulations where flame retardancy, smoke suppression, whiteness and mineral filler performance are required.

When heated, Aluminium Hydroxide releases water and absorbs heat, making it useful as a non-halogenated flame-retardant filler in suitable polymer systems. It can be used in applications such as PVC compounds, wire and cable compounds, rubber products, plastics, FRP, solid surfaces, adhesives, paints and coatings. citeturn0search2turn0search4

Lexen Industries & Minerals offers ATH Powder for bulk industrial requirements with customizable particle size, packaging and technical specifications, subject to the required application and grade.

Key Features

• High-purity Aluminium Hydroxide

• Fine white powder

• Chemical formula: Al(OH)

• CAS No.: 21645-51-2

• Inorganic, non-halogenated flame-retardant filler

• Good smoke-suppression characteristics

• High whiteness

• Suitable for polymer and mineral-filled formulations

• Available in different particle sizes

• Suitable for PVC, plastics and rubber applications

• Bulk industrial supply available

• COA and TDS available on request

Technical Specifications

*Specifications may vary according to grade and source. Final values should be confirmed through the product COA/TDS before publication or purchase.

Published Trade India listings for ATH commonly show approximately 99% purity, density around 2.42 g/cm, Al(OH) formula and CAS 21645-51-2; particle-size ranges vary substantially by grade and application. citeturn0search3turn0search6turn0search7

Applications

1. PVC & Plastics

• PVC compounds

• PVC profiles

• PVC sheets

• Plastic masterbatch

• Flame-retardant plastic compounds

• Engineering plastic applications

2. Wire & Cable

• PVC cable compounds

• Flame-retardant cable compounds

• Electrical insulation compounds

• Low-smoke applications

3. Rubber

• Flame-retardant rubber compounds

• Industrial rubber products

• Rubber sheets and profiles

4. FRP & Composite Materials

• Fiberglass reinforced plastics

• Composite materials

• Resin systems

• Solid surface materials

5. Paints & Coatings

• Flame-retardant coatings

• Functional mineral filler

• Industrial coating formulations

6. Adhesives & Sealants

• Flame-retardant adhesive formulations

• Polymer-based sealants

• Specialty compound formulations

Why Choose Lexen Industries & Minerals for ATH Powder?

Lexen Industries & Minerals supplies Aluminium Hydroxide ATH Powder for industrial applications with attention to purity, particle size, consistency and application requirements.

We can support bulk requirements for manufacturers using ATH in PVC, plastics, rubber, cable, FRP, paints, coatings, adhesives and composite materials.

Technical documents such as COA, TDS and SDS/MSDS can be provided according to the applicable product grade.

Packaging

ATH Powder can be supplied in:

• 25 Kg bags

• 50 Kg bags

• Jumbo bags

• Customized industrial packaging

Packaging can be finalized according to buyer requirements and transportation conditions.

Frequently Asked Questions ATH Powder

Q1. What is ATH Powder?

ATH Powder is Aluminium Hydroxide, also called Aluminium Trihydrate or Alumina Trihydrate. Its chemical formula is Al(OH) and it is widely used as an inorganic flame-retardant filler and functional mineral filler.

Q2. What is the CAS number of Aluminium Hydroxide ATH?

The CAS number of Aluminium Hydroxide is 21645-51-2. citeturn0search2turn0search6

Q3. What is ATH used for?

ATH is used in PVC, plastics, rubber, wire and cable compounds, FRP, solid surfaces, paints, coatings, adhesives and other polymer applications where flame retardancy and smoke suppression are required. citeturn0search2turn0search4

Q4. Is ATH a flame retardant?

Yes. Aluminium Hydroxide is widely used as an inorganic, non-halogenated flame-retardant filler. Its decomposition releases water and absorbs heat, which can contribute to flame-retardant performance in suitable formulations.

Q5. Can ATH be used in PVC cables?

Yes. ATH can be used in selected PVC and polymer cable formulations as a flame-retardant filler. The optimum loading depends on the PVC formulation, plasticizer system, required flame rating and other additives.

Q6. What is the purity of your ATH Powder?

Lexen Industries & Minerals can offer high-purity industrial ATH grades, including grades around 99% purity, subject to the specific product specification and COA.

Q7. What particle size of ATH is available?

ATH can be supplied in different particle-size ranges according to the application. Fine grades and customized particle sizes may be available. The required D50/D90 or mesh specification should be confirmed before quotation.

Q8. Is Aluminium Hydroxide soluble in water?

ATH is generally insoluble in water. It can react/dissolve under suitable acidic or alkaline chemical conditions. citeturn0search3turn0search7

Q9. What is the difference between ATH and Antimony Trioxide?

ATH and Antimony Trioxide are different flame-retardant materials with different mechanisms and formulation requirements. ATH is an aluminium hydroxide mineral filler, while ATO is an antimony-based synergist commonly used with halogen-containing flame-retardant systems.

Q10. Can ATH replace Antimony Trioxide completely?

Not necessarily. Replacement depends on the polymer, flame-retardant system, loading level and required fire-performance standard. A formulation trial and relevant flame testing should be performed before making a complete substitution.

Q11. Do you provide COA and TDS for ATH Powder?

Yes, COA and TDS can be provided according to the applicable product grade. SDS/MSDS documentation can also be provided where applicable.

Q12. What packaging is available for ATH Powder?

ATH can be supplied in 25 kg and 50 kg bags and bulk/Jumbo packaging, depending on the order requirement.

Q13. Do you supply ATH Powder in bulk?

Yes. Lexen Industries & Minerals can handle bulk industrial enquiries. Contact our sales team for current availability, specification, MOQ and quotation.

Q14. Can ATH specifications be customized?

Yes. Particle size and selected technical parameters may be offered according to application requirements, subject to product availability and technical feasibility.