1. Scientific Foundations Of Hollow Glass Microspheres 1.1 Composition and Microstructure one.1.1 Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are principally composed of borosilicate glass, a fabric renowned for its minimal thermal enlargement coefficient and chemical inertness. The chemical makeup typically features silica (SiO₂, 50-ninety%), alumina... https://demo.jcow.net/images/viewstory/88298