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AEROSIL R 202 COATING

HYDROPHILIC FUMED SILICA
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  • Product Type: Fumed Silica - Hydrophobic
  • Master Product Number: MITM04243
  • Product SKUs: ITM23616, ITM18655
  • CAS: 67762-90-7
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Product Details

AEROSIL® R 202 is a fumed silica surface-treated with polydimethylsiloxane

  • The silicone oil treatment guarantees the marked hydrophobia of the product
  • Highly efficient effect in the thickening and thixotropy of complex polar liquids, such as those based on epoxy, polyurethane, or vinylester resins
  • Improves the water resistance of moisture-sensitive formulations, such as cosmetic preparations
  • Improvement of the anti-settling behavior of pigments and anti-sagging behavior in 2-C epoxy coatings.
  • With silicone oil treatment, AEROSIL® R 202 offers a tailor-made chemical surface treatment.
  • Due to its excellent electrical insulating ability and low water absorption, this hydrophobized, small-particle silica easily acquires and conserves electrical charge. It is therefore typically used as a surface additive for toner particles in order to increase charge and improve flowability.
  • The high hydrophobicity of PDMS-treated, small particle AEROSIL® grades makes them particularly effective for achieving a high tribo-charge.
  • At the same time, PDMS-treated, small particle AEROSIL® grades maintain good flowability.
  • The slightly oily effect of the PDMS treatment provides additional benefits in some printing processes.

Typical Applications

  • Thickening and thixotropy control of adhesives and sealants for fiberoptic cables
  • Thickening and thixotropy control of epoxy and vinylester resins and gelcoats
  • Thickening and thixotropy control of cable gels, lubricants, and cosmetic formulations
  • Booster silica for defoamer formulations
  • Anti-sedimentation aid for fillers, such as chalk or quartz powder
  • Additive for formulation of anti-corrosion systems
  • Improves flowability of powders
  • Enables achieving of a high tribo-charge

About Evonik Corporation Coating Additives

Evonik offers a wealth of raw materials for the coatings industry. Be it cars, cell phones, or parquet flooring: materials of all kinds are protected from stubborn scratches when the coating contains fine-grained silicas or nanocomposites from Evonik.

Learn more about Evonik Corporation Coating Additives >

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