1. Scientific Foundations of Hollow Glass Microspheres 1.1 Composition and Microstructure one.1.1 Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are mainly made up of borosilicate glass, a cloth renowned for its lower thermal enlargement coefficient and chemical inertness. The chemical makeup commonly involves silica (SiO₂, fifty-ninety%), alumina (Al₂O₃... https://pastelink.net/x7lexk1g