EVONIK CORPORATION › SIPERNAT® D 10 SIPERNAT® D 10 $0.00 SIPERNAT® D 10 is a very fine milled, hydrophobic (not wettable by water) silica, high methanol wettability and low surface area. Add To Cart Added! SIPERNAT® D 10 is a very fine milled, hydrophobic (not wettable by water) silica, high methanol wettability and low surface area. You Might Also Like SIPERNAT® 500 LS SIPERNAT® 50 S SIPERNAT® D 13 SIPERNAT® 880 SIPERNAT® 340