Silphobic A200 is a hydrophilic fumed silica with a specific surface area of 200 m2/g.
Silphobic A380 is a hydrophilic fumed silica with a specific surface area of 380 m2/g
Silphobic A72 is hydrophobic fumed silica with a specific surface area of 110 m2/g.
Silphobic A74 is hydrophobic fumed silica with a specific surface area of 170 m2/g.