CAB-O-SIL H-5 fumed silica is a high surface area fumed silica that can impart a significant increase in the viscosity of liquid systems, and both reinforcement and viscosity of sealants and rubbers. All untreated fumed silicas are characterized by:- High purity
- Aggregated structure
- Submicron particle size
- Low bulk density
- Hydrophilic surface chemistry
Application information: Rheology Control for Coatings, Adhesive and other Liquid Systems: CAB-O-SIL H-5 fumed silica can be used to provide thickening, thixotropic (shearthinning), and anti-settling behavior in liquid systems. High shear dispersion equipment is required to realize the full benefits of H-5 fumed silica. For clear coatings and other systems, well-dispersed CAB-O-SIL H-5 fumed silica allows for good transparency. CAB-O-SIL H-5 fumed silica is most suited for building viscosity in non-polar to medium polarity systems. For more polar systems, treated fumed silicas are more efficient in building viscosity. Reinforcement of Silicone and Organic Rubber: CAB-O-SIL H-5 fumed silica can be used for reinforcement of silicone rubber and can be used to reinforce organic rubbers. It imparts good increase in hardness, tensile strength and elongation.Information provided by Cabot Corporation |