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# Delta Tecnic promotes safer ATO incorporation in plastics processing
- URL: https://www.plasticsiq.com/delta-tecnic-safer-ato-plastics-processing/
- Published: 2026-11-11T11:22:06.000Z
- Updated: 2026-11-11T11:22:06.000Z
- Description: The company hopes to replace direct handling of powdered ATO by incorporating it into a polymer matrix as a masterbatch.
- Author: Rhiannon Temporal
- Tags: Materials, Industrial & Energy, Building & Construction, Supply Chain, News

[**Delta Tecnic**](https://deltatecnic.com/?ref=plasticsiq.com) **is promoting a safer, more controlled way of incorporating antimony trioxide (ATO) into plastics processing. The company hopes to replace the direct handling of powdered ATO by incorporating it into a polymer matrix in a masterbatch format. This will reduce operators’ exposure and enable a more homogeneous incorporation of the additive into the production process.**

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Delta Tecnic’s solution sees ATO distributed and encapsulated within a polymer matrix before arriving at the customer’s plant. This makes it easier to handle and dose, while ensuring greater control over its incorporation into the compound.

“The innovation lies in transforming the way ATO is used in the plant, rather than in replacing it,” said Eva Gotor, Marketing Manager at Delta Tecnic. “The masterbatch format addresses a handling safety issue and a process issue at the same time, enabling a more controlled and homogeneous incorporation of the additive.”

### Understanding ATO

ATO acts as a synergistic agent, especially in halogenated systems, boosting their effectiveness and helping to achieve the fire performance required in various technical applications. Traditionally supplied as a powder, its handling can generate airborne particles during operations (e.g., loading, internal transport or dosing), increasing operators’ potential exposure and the need for cleaning and control in the plant.

Delta Tecnic’s masterbatch technology addresses these challenges. ATO is incorporated beforehand into a polymer matrix, reducing the variability associated with adding the powder directly. It also promotes a more uniform distribution of the active ingredient in the final compound.

Additionally, using high-purity ATO, above 99.8%, and a high level of batch-to-batch consistency is particularly relevant in technical applications where formulation stability is essential to maintain reproducible behaviour during production.

Ensuring the effective ATO content in the final formulation stays the same, and the other components of the flame-retardant system are not modified, switching from powdered ATO to masterbatch should not alter the expected fire performance.

Easing the transition from powder to masterbatch, Delta Tecnic has developed different formats and carriers adapted to the characteristics of each process. For PVC, this includes standard pellet, micropellet and flake, all with 80% ATO. For polyethene and EVA, there are specific grades with their respective carriers and an ATO concentration of 90%.

#### The range is aimed at applications including:

- Power cables and data cables.
- Flame-retardant compounds.
- Construction and flooring products.
- Technical films and sheets.

Delta Tecnic holds its own REACH registration for ATO, allowing direct management of regulatory compliance and providing traceability within the European market. The European Critical Raw Materials Act includes antimony among the European Union’s critical raw materials, owing to its economic importance and the risks associated with its supply.