AEROSIL® Fumed Silica
AEROSIL® is used in silicone sealants which can be found in any bathtub as well as in car paints. It is also used in the production of offshore yachts and in the electronics industry. Fumed silica has a strong thickening effect. It is used to improve flow within powders and properties in products like toothpaste and acts as filler in coatings and paint.
Along with the traditional polyester, silicone, paints and coatings applications, hydrophilic AEROSIL® products are used with increasing success in high technology fields. The particle nature and high purity of fumed silica play key roles in the electronics and optical fibers industries. Furthermore, the hydrophilic AEROSIL® grades are characterized by an X-ray amorphous structure. Depending on the market and application, products with various primary particle sizes and different BET-surface areas are available. Certain types are also available in compacted form (V and VV grades) and in a pharmaceutical grade.View Details
Numerous grades of hydrophobic AEROSIL® fumed silica have been developed to solve particular technical problems. AEROSIL® hydrophobic fumed silica are produced by chemical treatment of hydrophilic grades with silanes or siloxanes. In the finished product the treatment agent is chemically bonded to the previously hydrophilic oxide. AEROSIL® hydrophobic products are characterized, among other things, by a low moisture adsorption, excellent dispersibility, and their ability to adjust rheological behavior, even that of polar systems.View Details
AEROSIL® MOX grades are recommended for the production of highly-loaded low viscous aqueous dispersions. The fumed mixed oxides are manufactured (co-fumed) using the AEROSIL-process as previously described, and may be regarded as a mixture of SiO2 and Al2O3 on the molecular level. AEROSIL® COK 84 is a physical mixture of SiO2 and Al2O3 which provides strong thickening effects in aqueous media.View Details
For samples, technical data sheets (TDS), safety data sheets (SDS) or general questions, please contact a specialty chemical representative.