Sipernat 320 DS Precipitated silica 112926-00-8 Degussa Extenders / Fillers >> Silica Rheology Modifiers / Thickeners >> Mineral >> Synthetic Silica ADHESIVE Sipernat 320 DS is a very fine particle silica with a good thickening effect in liquid systems. synthetic amorphous precipitated silica Synthetic amorphous precipitated silica. Has a good thickening effect in liquid systems.