AEROSIL R 974 Hydrophobic fumed silica 68611-44-9 Degussa-Silanes Rheology Modifier/ Thickener Inks Coatings INKS >> Lithographic and Offset Inks AEROSIL® R 974 is a hydrophobic fumed silica after treated with DDS (Dimethyldichlorosilane) based on a hydrophilic fumed silica with a specific surface area of 200 m²/g. It possesses hydrophobic component for thickening and reinforcement of RTV-1 K silicone sealants, improves shelf-life of silicone sealants, water resistant, hydrophobising of liquid systems, rheology control of(complex) liquid systems, for use in coatings as anti-settling agent, for pigment stabilization and improvement of corrosion protection, improves hydrophobicity and rheology of offset printing inks, improvement and maintenance of free flow and anti-caking characteristics of powders, due to large surface area improved thickening and thixotropic effect as well as transparency. It is used in silicone rubber and silicone sealants, paints and coatings, negative toner, adhesives, coating polymers. Hydrophobic fumed silica. Used in paints and coatings, coating polymers. Offers water resistance, hydrophobising of liquid systems. Provides improvement in hydrophobicity and rheology of offset printing inks. Also offers improvement and maintenance of free flow and anti- caking characteristics of powders. Possesses pigment stabilization and improvement of corrosion protection.