AEROSIL R 208 - Description

AEROSIL R 208 is a fumed silica aftertreated with polydimethylsiloxane with excellent thickening properties.


More information about AEROSIL R 208

  • The silicone oil treatment guarantees the very marked hydrophobia of the product

  • Very 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 208 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.

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