AEROSIL® fumed silica for defoamers

AEROSIL® fumed silica are used in defoamer, foam inhibitors, foam regulators and/or deaerator formulations based on various hydrophobic liquids such as mineral oil, silicone oil and/or vegetable oil.

Defoamer AEROSIL

Properly dispersed in oil, AEROSIL® effectively disrupt the formation of bubbles in most kinds of foams by impairing bubble stability and causing bubbles to burst as they begin to form.

  • AEROSIL® hydrophobic fumed silica is an effective defoamer booster.

  • AEROSIL® fumed silica is often used as a rheology modifier and antisettling agent in oil and emulsion formulations.

For more detailed product and application information, please download the brochure: TI 1313 – “SIPERNAT® and AEROSIL® for Defoamer”.

AEROSIL® for Defoamers



Technical Information 1313: SIPERNAT® and AEROSIL® for Defoamer  (pdf, 742 KB)

Foam is detrimental to most poduction processes. The use of foam control agents containing Evonik SIPERNAT® and AEROSIL® grades is a cost-effective method preventing for foam problems.


Technical Information 1360: SIPERNAT® and AEROSIL® - an Essential in Industrial Powder Technology  (pdf, 245 KB)


Technical Information 1381: AEROSIL® and SIPERNAT® - Efficient booster for defoamer in paints and coatings  (pdf, 448 KB)


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