Fiber optic cables

Partner for the markets of the future

Where Siridion® makes all the difference

Evonik has decades of experience in the development, cost-efficient production as well as in the safe handling and transport of Siridion® monosilane and chlorosilanes, and is one of the largest suppliers of this product class worldwide. Although Siridion® products are also used as precursors for the production of other Evonik products such as fumed silica (AEROSIL®) and functional silanes (Protectosil®, Dynasylan®) as well as for an array of processes in various industries, such as chlorinating reactions, our main external customers come from four cutting-edge industries:

Siridion® for optical fibers


Due to the extraordinary purity of Siridion® chlorosilanes, our products occupy a worldwide leading position in optical fibers.


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Siridion® for semiconductors


Reliability and product quality make Siridion® a preferred raw material for the semiconductor industry.


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Siridion® for photovoltaics


Siridion® chlorosilanes are used successfully worldwide for solar energy components. Evonik Resource Efficiency supplies these directly or builds fence-to-fence plants.

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Siridion® for other applications


Siridion® products can be used, for example, in chlorinating reactions, as silicon precursors, and for an array of processes in various industries such as ingredients in the green tire technology.