AEROSIL R 812 S VV 90 Hydrophobic fumed silica 68 909-20-6 Degussa-Silanes Corrosion inhibitor Rheology Modifier/ Thickener Coatings Powder coating AEROSIL® R 812 S VV 90 is a fumed silica aftertreated with HMDS based on AEROSIL® 300. It possesses an effective rheology control in complex liquid systems (e.g. 2 pack-PUR coatings), can be applied in coatings systems as an anti-settling agent for the stabilization of pigments and to enhance the effect of corrosion protection, free flow aid in powder coatings, incorporated into silicone rubber formulations and improves their mechanical and optical properties, reduced dust development, improved incorporation and handling due to a homogeneous and gentle densification. It is used in paints and coatings systems, adhesives and sealants, silicone rubber. Hydrophobic fumed silica. Used in paints and coatings systems. Provides stabilization of pigments and enhance the effect of corrosion protection. Offers free flow aid in powder coatings. Possesses an effective rheology control in complex liquid systems(e.g. 2 pack-PUR coatings).