One. Scientific Foundations of Hollow Glass Microspheres one.one Composition and Microstructure 1.one.one Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are generally composed of borosilicate glass, a cloth renowned for its minimal thermal enlargement coefficient and chemical inertness. The chemical makeup commonly incorporates silica (SiO₂, fifty-90%), ... https://pastelink.net/7to4yheu