HDK H21 hydrophobic pyrogenic silica. HDK H21 is applied as a thickening and thixotropic agent in coatings, adhesives and sealants, especially in epoxy and polyurethane systems.
HDK H21
Von: Wacker
Technische Beschreibung von HDK H21
Name chemisch/kommerziell
Synthetic, hydrophobic, amorphous silica, produced via flame hydrolysis.