[Discontinued]XYSIL® R170B hydrophobic Fumed Silica

At present, this product is discontinued, thanks!

XYSIL® R170B is a fumed silica after-treated with HMDS(hexamethyldisilazane) based on a hydrophilic fumed silica with a specific surface area of 200m2/g.


  • Paints & coating
  • RTV silicone sealant
  • Silicone rubber
  • Adhesive


In coating, paint, adhesive, sealant, and silicone, etc., it applied as:

  • Thickening agent
  • Thixotropic agent
  • Anti-settling agent

Free sample of XYSIL® R170 is available. Contact us now for the free sample.


Packing and Storage:

XYSIL® R170B is packaged in multiple layer kraft paper 10kg bags on the pallet and should be stored in the original packaging in dry storage areas for protecting the material from the volatile substance. Xysil fumed silica should be used within 1 year after production.


TDS: Technical Data Sheet of XYSIL® R170
MSDS: Material Safety Data Sheets of XYSIL® Hydrophobic Fumed Silica