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


White colloidal powder of high purity.


All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product's fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties' rights.

HDK® H13L is applied as a thickening, thixotropic and antisedimentation agent in coatings, printing inks, adhesives and others. It is mainly used in polar systems. Due to its strong hydrophobicity HDK® H13L is well suited for solventfree systems, for high solids and for waterborne coatings.

HDK® H13L is not suitable for pharmaceuticals, food and feed.

A good dispersion of HDK® H13L is a must to assure optimum performance.

More detailed information about the application and processing of HDK® H13L is available in our HDK-brochures and on the WACKER web site.


HDK® H13L is offered in following packaging:

  • pallet with paper bags: 10 kg bags
  • Big bags: 200 kg (big bags on pallets) 


The 'Best use before end' date of each batch is shown on the shipping label and the certificate of analysis.

HDK® H13L 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)

How can we help you?

  • Do you need help in choosing a product or do you require technical support? If so, please contact our experts.
Ask a question

Would you like a product sample?

You can request a product sample here.

Request sample


My media

My favorites

My products