HDK® H20RH by Wacker is a hydrophobic silica that has been treated with alkylsilane. Acts as a rheological modifier. Possesses excellent storage stability in basic systems and is ideal as a... view more

HDK® N20D is a synthetic, hydrophilic amorphous silica by Wacker. Acts as a highly effective thickening and thixotropic agent in unsaturated polyesters and adhesives. HDK® N20D is produced via flame... view more

High purity, synthetic, hydrophilic amorphous silica. Used as a thickening and thixotropic agent in adhesives. Can be wetted by water. Offers high gloss and transparency... view more