AEROSIL® R974 is a hydrophobic fumed silica aftertreated with DDS (Dimethyldichlorosilane) based on a hydrophilic fumed silica with a specific surface area of 200 m²/g.

Applications

• Silicone rubber and silicone sealants
• Paints and coatings
• Negative toner
• Adhesives
• Coating polymers
• Cosmetics

Properties

• Hydrophobic component for thickening and reinforcement of RTV-1 pack silicone sealants
• Improves shelf-life of silicone sealants
• Water resistant, for thickening and 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