Synthetic, hydrophilic, amorphous silica, produced via flame hydrolysis. Standard product for industrial applications.
White colloidal powder of high purity.
HDK® S13 is applied as a thickening and thixotropic agent in silicone sealants.
HDK® S13 is used as a reinforcing filler in elastomers, mainly silicone elastomers.
HDK® S13 is not suitable for pharmaceuticals, food and feed.
A good dispersion of HDK® S13 is a must to assure optimum performance.
More detailed information about the application and processing of HDK® S13 is available in our HDK-brochures and on the WACKER web site.
HDK® S13 is offered in following packaging:
- pallet with paper bags: 10 kg bags
- Big bags: 170 kg (big bags on pallets)
- Silotruck: depending on size of truck, approx. 3.5 to 5 tons
The 'Best use before end' date of each batch is shown on the shipping label and the certificate of analysis.
HDK® S13 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.