Technical datasheet

HDK® H30

Supplied byWacker- Last Updated on Mar 27, 2026

Synthetic, hydrophobic amorphous silica, produced via flame hydrolysis. It acts as a thickening and thixotropic agent. It is used as a reinforcing filler in elastomers, mainly silicone-elastomers. Its good dispersion is a must to assure optimum performance. It has a shelf life of at least 24 months when stored in unbroken original packaging in dry storage areas.
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HDK® H30 properties

Other properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login
Density, Tapped0.0 Visible After LoginVisible After LoginVisible After Login
Electric resistivity (density 40 g/l)0.0 Visible After LoginVisible After LoginVisible After Login
Loss on drying, 2 h at 105°C (DIN EN ISO 787-2)0.0 Visible After LoginVisible After LoginVisible After Login
SiO2 Content (DIN EN ISO 326219)0.0 Visible After LoginVisible After LoginVisible After Login
Sieve residue, acc. to Mocker > 40 µm (DIN EN ISO 787-18)0.0 Visible After LoginVisible After LoginVisible After Login
Surface Area, BET0.0 Visible After LoginVisible After LoginVisible After Login
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