... .BET surface:225 m2 / g 4.other name:white carbon black hydrophobic nano silica1.SiO2:Min 96%3.Size:13-16 ... nanometer4.BET surface:170 -240m2 / g2.other name:white carbon black [Technical data] Average primary particle size 13-16(nm) Purity ... , rubber, plastic, fiber, sealant, adhesivePackage: hydrophobic nano silica (white carbon black)