Fumed silica

Particle size 7—40nanometers,with a specific surface area between 70---400m2/g.Because of its small particle size 、bigger surface area 、more activate surface characteristic ,in rubber 、coating、adhesive、paint、printing ink 、plastic、cosmetics as well as agriculture、medicine and other fields  has the widespread application, to have a good reinforcement、thickening、absorbing the transparence、anti-UV、sterilization and so on .