GS-272 is a hydrophobic fumed silica derived from hydrophilic fumed silica with a specific surface area of 150, treated with dimethyldichlorosilane. It is more suitable for applications such as coatings and inks.
GS-380S is a hydrophobic fumed silica derived from hydrophilic fumed silica with a specific surface area of 380, treated with hexamethyldisilazane. It is suitable for powder materials, defoamers, and medium- to highly polar systems.
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