HDK® H20

Synthetic, hydrophobic, amorphous silica, produced via flame hydrolysis.

  • INCI Silica Dimethyl Silylate


White colloidal powder of high purity.

Specific features of HDK® H20

  • Hydrophobic

HDK® H20 is applied as a thickening and thixotropic agent in coatings, printing inks, adhesives, cosmetics and others.
HDK® H20 is used as a reinforcing filler in elastomers, mainly silicone-elastomers.
HDK® H20 acts as a free flow additive in the production of powder coatings.

HDK® H20 is not suitable for pharmaceuticals, food and feed.

A good dispersion of HDK® H20 is a must to assure optimum performance.

More detailed information about the application and processing of HDK® H20 is available in our HDK-brochures and on the WACKER web site.



HDK® H20 is offered in following packaging:

  • pallet with paper bags: 10 kg bags
  • Big bags: 160 kg (big bag on pallet)



The 'Best use before end' date of each batch is shown on the shipping label and the certificate of analysis. HDK® H20 should be stored in the original packaging in dry storage areas. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

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