The AEROSIL from Evonik Industries AG - finer particles for smoother everyday products

Reviewed: ad hoc news New Release & Launch desk. Edited and checked on 2026-06-30, 04:17. Details in the imprint.

The AEROSIL fumed silica from Evonik Industries AG looks inconspicuous at first glance, just a soft white powder between your fingers, but it quietly decides whether a cream feels silky or a sealant flows smoothly. In a lab beaker the particles disappear into liquids, yet the texture transforms within seconds. The product sits right at the point where chemistry meets daily touch.

Where AEROSIL shows up

Evonik Industries positions AEROSIL as a family of fumed silica grades that end up in everything from skincare jars to car windshields and printer toner. In cosmetics it helps stabilise emulsions so a lotion stays creamy on the shelf instead of separating into oil and water. You notice the effect when a cream spreads evenly, with no watery halo on the skin.

In industrial sealants and adhesives AEROSIL controls rheology, the way a paste flows under pressure, so a bead keeps its shape instead of collapsing into a puddle. That matters on construction sites where installers rely on predictable flow to avoid messy joints and rework. The same particles contribute to anti-blocking behaviour in plastics films, so rolls unwind cleanly.

How the powder is made

At its core AEROSIL is produced by flame hydrolysis of silicon compounds, a process that creates extremely fine, amorphous silica particles with very high specific surface area. In practice that means enormous contact area packed into a small mass, which makes the material particularly effective at binding liquids and tuning viscosity.

By adjusting process parameters and subsequent surface treatment, Evonik Industries offers hydrophilic and hydrophobic grades that handle very different formulations. Hydrophilic types disperse well in water-based systems, while hydrophobic grades favour non-polar oils and resins. Formulators pick from this menu like a tool kit to hit a desired flow curve.

In the hands of formulators

In one concrete example, a coatings chemist at an automotive supplier might choose a specific AEROSIL grade to prevent pigments from settling over time. The powder keeps particles suspended so the first panel sprayed on a Monday looks like the last panel sprayed on Friday. That consistency matters for colour audits and warranty claims.

Cosmetic developers use the same toolkit to achieve a matte finish in facial products without a chalky feel. AEROSIL can scatter light at the surface, reducing shine, while its tiny particle size avoids a sandy texture between the fingertips. Testers often remark that a formula feels more controlled, with less slip during application.

What users feel day to day

The typical consumer never sees the word AEROSIL on a jar, but they feel its presence when a cream does not run down the back of the hand before it is fully absorbed. The product keeps a lotion in a tidy droplet, easy to spread, with a smooth and clean finish instead of streaks.

On a construction site the sensory experience is different but equally tangible. A sealant containing AEROSIL leaves the cartridge with a predictable bead that holds its shape long enough for tooling. Installers notice fewer drips on floors and a more self-assured line around window frames.

Environmental and regulatory angle

Evonik Industries emphasises that AEROSIL is an amorphous silica, distinct from crystalline forms that raise occupational health concerns, and designs its production and handling guidelines around established workplace exposure limits. That helps large customers align product lines with evolving safety rules.

Regulatory teams in cosmetics and coatings value the long track record of fumed silica in formulations, because it reduces surprise when labels move to new markets. A stable additive portfolio means fewer reformulation cycles driven purely by compliance rather than performance.

Role in Evonik Industries' portfolio

AEROSIL sits within Evonik Industries' Smart Materials segment, where high-margin additives and specialty chemicals add value to larger material flows. The product family connects to sectors ranging from personal care to automotive and electronics, creating diversified demand.

That diversification helps smooth revenue across cycles, because weak construction activity may be offset by stronger sales in consumer care or packaging films. For Evonik Industries the powder is less a single hero, more a quiet contributor spread across hundreds of formulations.

Stock angle and trading venue

Bottom line, AEROSIL is a textbook example of how a specialised additive can shape everyday products without carrying a flashy brand name of its own. Evonik Industries shares (ISIN DE000EVNK013) are listed in Germany, with trading concentrated on platforms such as Xetra in euros.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.

en | DE000EVNK013 | EVONIK | boerse | 69656550 | bgmi