EVONIK CORPORATION › AEROSIL® R 974 AEROSIL® R 974 $0.00 AEROSIL® R 974 is a hydrophobic-fumed silica after treated with DDS (dimethyldichloro/silane). Add To Cart Added! AEROSIL® R 974 is a hydrophobic-fumed silica after treated with DDS (dimethyldichloro/silane). You Might Also Like AEROSIL® R 8200 AEROSIL® R 812 S AEROSIL® R 7200 AEROSIL® R 805 AEROSIL® RX 50
