1 LB Cab-O-Sil Fumed Silica (Silicon Dioxide)

Cab-O-Sil is a brand name for fumed silica, a synthetic amorphous silicon dioxide (SiO₂) produced by flame pyrolysis. Manufactured primarily by Cabot Corporation, it appears as a very light, fluffy white powder with extremely small particle size (nanometer range), high surface area, and a branched, three-dimensional structure. These unique physical properties make it highly effective as a multifunctional additive across numerous industries.