Hollow glass microspheres, also known as glass bubbles, are tiny spheres made of thin-walled glass. They are lightweight, chemically inert, and have excellent thermal and electrical insulating properties. Here are some common applications of hollow glass microspheres: 1. Aerospace and Defense; 2. Automotive and Transportation; 3. Construction and Building Materials; 4. Oil and Gas; 5. Coatings and Paints; 6. Electronics and Energy Storage; 7. Personal Care Products