EVONIK CORPORATION › SIPERNAT® 320 DS SIPERNAT® 320 DS $0.00 SIPERNAT® 320 DS is a very finely ground silica with good thickening and excellent flow improving properties. Quantity: Add To Cart Added! SIPERNAT® 320 DS is a very finely ground silica with good thickening and excellent flow improving properties. You Might Also Like SIPERNAT® 28 SIPERNAT® 350 SIPERNAT® D 10 SIPERNAT® 820 A SIPERNAT® 50
