Synthetic, hydrophilic, amorphous silica, produced via flame hydrolysis. Standard product for industrial applications.


White colloidal powder of high purity.

HDK® V16D is applied as a thickening and thixotropic agent in silicone sealants.

HDK® V16D is not suitable for pharmaceuticals, food and feed.

A good dispersion of HDK® V16D is a must to assure optimum performance.
More detailed information about the application and processing of HDK® V16D is available in our HDK-brochures and on the WACKER web site

Verpackung / Gebinde

HDK® V16D is offered in following packaging:

  • pallet with paper bags: 15 kg bags
  • Big bags: 180 kg (big bags on pallets)
  • Silotruck: depending on size of truck, approx. 5 tons


The 'Best use before end' date of each batch is shown on the shipping label and the certificate of analysis.HDK® V16D 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.
Due to the high surface area HDK® adsorbs volatiles and should be protected from humidity and volatiles. If single bags are taken away from an original pallet, the remaining bags of this pallet must again be protected against humidity and volatiles.

Vertrieb & Support

Wacker Chemie AG
Heilbronner Strasse 74
70191 Stuttgart
+49  711  61942-0 (Phone)
+49 711 61942-61  (Fax)

Wie können wir Ihnen helfen?

  • Benötigen Sie Unterstützung bei der Produktauswahl oder wünschen Sie eine technische Beratung? Kontaktieren Sie unsere Experten.
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