Hydrophobic nano silica oxide powder 1.SiO2:Min 96% 3.Size:13-16(nm) ... -240m2 / g 2.other name:white carbo Hydrophobic nano silica oxide powder1.SiO2:more than 96%3.Size:13-16 nanometer4 ... grease, coating, rubber, plastic, fiber, sealant, adhesive Hydrophobic nano silica oxide powder