Precipitated Silica

Evonik’s™ versatile SIPERNAT® range is used across a wide varierty of industries, in an ever increasing number of applications. These fine, inert precipitates are entirely inorganic and are composed of approximately 99% silicon dioxide (SiO2). SIPERNAT® has long been used to facilitate manufacturing processes and enhance the performance of end products. Its unique physical characteristics mean that it is often unrivalled when it comes to improving properties such as flowability and anticaking in powders. Additionally, SIPERNAT® is used to convert difficult to handle liquids into free flowing powders, this is particularly common in the Agrichemical industry for the production of wettable powders and water dispersible granules.


    • Precipitated silica and silicate derivatives.

    • High internal pore volume.

    • A range of particle size distributions.

    • FAMI-QS approved grades available.

    • Hydrophilic and hydrophobic variants.


    • Highly efficient liquid carrier capable of absorbing up to three times its own weight.

    • Improves flow properties and reduces effects of caking in hygroscopic powders.

    • Popular choice for antiblocking in polymer films due to spherical morphology, size and hardness.

    • Hydrophobized grades work well in boosting defoamer efficiency.

    • Cost effective IR absorption in polymer films.

Typical Applications

    • Free-flow and anticaking additive in a wide range of host powders.

    • Carrier for a wide range of liquids e.g. pesticides, fragrances, feed additives.

    • Booster for defoamer/anti-foaming agent manufacture.

    • Antiblocking agent in polyethylene film. Works well in other thermoplastics as well.

    • Matting and scrub resistant additive in decorative coatings.

Featured grades with technical datasheets

A brief overview of the key grades is given below. You will find the Technical Datasheets (TDS) available for download. If you are looking for a Safety Datasheet (SDS) or Product Safety Information (PSI) then please get in touch by phone or via the contact buttons at the top of the page.

Should you not find what you are looking for here then please note that we have further grades available besides these. One of our Technical Sales team will be happy to help. All of the sales team are technically qualified and will be able to advise you on which product to choose. You can either call us, email us or fill in a quick form at the top of the page to get us to call you (Request a Callback). A sample can be requested via the button at the top of the page as well. Please note that by providing us with your contact details, you are agreeing for us to potentially contact you.

Related brochures & technical literature

You will find some of the key product brochures available for download below. There are more brochures available upon request. If you would like to discuss your enquiry further then please get in contact by phone or by filling in the "Request a Callback" form at the top of the page. Someone from the technical sales team will then call you within 24 hours, to discuss your project further.

SIPERNAT® Overview

An introductory overview to the SIPERNAT® precipitated silica range.

SIPERNAT® Overview Brochure /




SIPERNAT® for the Animal Feed Industry

SIPERNAT® helps to transform liquid or paste feed additives into free flowing powders. Also used to extend storage time through the prevention of caking in hygroscopic materials.

SIPERNAT® for the Animal Feed Industry Brochure /




SIPERNAT® and AEROSIL® as Flow Aid and Anticaking Aid

A technical brochure on the use of SIPERNAT® to improve the flow and caking properties of difficult to handle powders. Information is given on how to choose a suitable grade for a given host powder. Methods of mixing are also demonstrated.

SIPERNAT® and AEROSIL® as Flow Aid and Anticaking Aid Brochure /