Hollow glass microspheres are lightweight spherical particles characterized by a smooth and reflective surface. Predominantly formulated with alkali-lime borosilicate glass, they possess a distinctive set of properties: low density, high mechanical strength, low thermal conductivity, excellent electrical insulation performance, temperature resistance, chemical stability, and good fluidity. These multi-functional microspheres are extensively utilized in adhesives, corrosion-resistant coatings, insulating coatings, construction materials, rubber products, synthetic wood, oilfield cementitious materials, and lightweight automotive composite materials.