CAS No. 68611-44-9
EC No. 271-893-4
Synonyms Amorphous Colloidal Silica; Amorphous Silica

Fumed silica HB-139

Fumed silica HB-139 is a hydrophobic fumed silica treated with a dimethyl silicone fluid. Used as a rheology control agent, a free flow agent, a thickener and a thixotrope in adhesives and sealants. Fumed silica HB-139 offers sag resistance.