Aerosil 380 Silicium dioxide 112 945-52-5 Degussa Extenders / Fillers >> Silica Rheology Modifiers / Thickeners >> Mineral >> Fumed Silica Polyesters Rubber - Elastomer (Chloroprene, Butyl …) Silicones (Si) ADHESIVE SEALANT Aerosil 380 is a hydrophilic fumed silica. Used in adhesives and sealants. Rheology and thixotropy control of liquids, binders, polymers, etc. AEROSIL® grade with the highest surface area resulting in best thickening and thixotropy. Reinforcement of HCR silicone rubber. Excellent transparency in unsaturated polyester resins Hydrophilic fumed silica. Used in adhesives and sealants. Permits rheology and thixotropy control of liquids, binders and polymers. Provides good transparency in unsaturated polyester resins