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Got Antimony Trioxide (ATO)?

Why ATO Matters


Antimony trioxide (ATO) (CAS number 1309-64-4) is a critical synergist in flame retardant systems, widely used as an additive in plastics, textiles, electronics, and construction materials. When combined with halogenated compounds, ATO enhances flame resistance, helping manufacturers meet stringent fire safety standards.
 
  • Synergistic Action: ATO reacts with halogenated compounds during flame combustion to form antimony halides, which inhibit flame propagation.
  • Gas Phase Action: Antimony halides act in the gas phase to halt free radicals, slowing down or stopping the combustion process. 
  • Char Formation: ATO can also promote char formation, which further acts as a barrier to heat and oxygen.
ATO Flame retardants are used for the following critical applications:

                        Plastics                                                           Textiles

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              Electronics & Cables                       Paints & Coatings

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ATO Sourcing Challenge

Recent disruptions in the mining and processing of antimony, alongside rising global demand, have led to a shortage of ATO flame retardants within the market. Many manufacturers have experienced long lead times, price spikes, and even halted production.

Global supply chains for ATO have become increasingly strained due to the following:
  • Geopolitical trade disputes
  • Shifts in producing, mining, and refining
  • Market volatility and a lack of exports drive unpredictable pricing and availability
  • Quality inconsistencies

Your ATO Solution Starts Here

We specialize in supply chain resilience for flame retardant solutions backed by a team of technical experts who understand the complexities of formulation, compliance, and performance.

Our team of experts is ready to help you with the following:
  • Technical specifications
  • Documentation
  • Bulk orders
  • Guidance on ATO safety and usage
Whether you are facing delays, quality issues, or cost pressures, we are here to help you navigate the ATO market with confidence. Contact us today to learn how we can support your ATO flame retardant needs.

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