As a manufacturer of hollow glass spheres, are you looking for a filling material that is both efficient and economical? Then we highly recommend that you try the hollow glass microspheres that we manufacture. This high-strength polymer filler, crafted from borosilicate glass and calcium-sodium glass, will bring a qualitative leap to your products.
hollow glass spheres

What Are Bead Blasting’s Applications?
Aerospace industry | Remove rust and paint from mechanical components to remove knife marks. |
Remove scratches on the rubber | Reflective paint for roads |
Scratch treatment on the surface of stainless steel. | |
Foundry industry; | Pre processing in the electroplating industry. |
Semiconductor Industry | Crafts for exterior decoration |
hollow glass spheres
Innovation and Development:
In recent years, we have continued to upgrade and innovate our technology for hollow glass microspheres. Now, we offer high precision glass microspheres with higher sphericity, tighter tolerances and narrower particle size distribution, enabling them to be used in military, biotechnology, medical devices, high-tech equipment and other new materials.
Special Applications:
High-tech equipment: Hollow glass microspheres can significantly reduce the dielectric constant of 5G materials and increase the wave transmittance in applications that require strict control of particle size and compressive strength.
Military: Hollow glass microspheres are high quality sensitizers for emulsified explosives, which can increase the sensitivity and explosive force of explosives and improve their performance after long-term storage.
As your partner, we promise to provide high quality hollow glass microsphere products and professional technical support. Let’s work together to inject new vitality into your products!
Size of glass beads for blasting
Model of Bead blasting glass | Sieve Size (mesh) | Particle Size Range(μm) |
WSL17L# | 20~40 | 425 ~ 850 |
WSL 18L# | 30~40 | 425 ~ 600 |
WSL 19L# | 40~60 | 300 ~ 425 |
WSL 20L# | 60~100 | 150 ~ 300 |
WSL 21L# | 70~140 | 106 ~ 212 |
WSL 22L# | 100~140 | 106 ~ 150 |
WSL 23L# | 100~200 | 75 ~ 150 |
WSL 24L# | 140~200 | 75 ~ 106 |
WSL 25L# | 140~270 | 53 ~ 106 |
WSL 26L# | 200~325 | 45 ~ 75 |
Specification of Bead blasting glass
Specific gravity | 2.4-2.6 g/m3 |
Stacking density | 1.5g/cm3 |
Type | Blasting / Shot Peening Media |
Spherical | |
Rockwell hardness: | 46HRC |
Mohs | 6-7 |
Round rate | 80% |
Melting point | 710-730 ℃ |
Index of refraction | 1.5—1.6 |
Product Features:
Appearance and texture: Hollow glass microspheres appear as a loose, free-flowing white powder, with a delicate feel and easy processing.
Chemical and Physical Properties: High chemical stability, excellent electrical insulation, low oil absorption and low density. These properties make hollow glass microspheres ideal for a variety of applications.
Microstructure: When viewed under a microscope, hollow glass microspheres exhibit a hollow, sealed spherical structure with diameters ranging from 10-250 microns, which is where they get their name.
History & Advantages:
Hollow glass microspheres have undergone years of development and optimization since their inception in the 1950s. Their low density properties are particularly remarkable, with hollow glass microspheres weighing half or even a quarter as much per unit volume as solid filler materials. This means that with hollow glass microspheres, you can significantly reduce material costs while maintaining performance.
Wide range of applications:
Engineering plastics: Hollow glass microspheres are widely used in the production of nylon, PP, PBT, PC, POM and other engineering plastics. It can reduce the production cost, improve the flame retardancy and heat distortion temperature of the products, as well as improve the fluidity and eliminate the problems of glass fiber exposure.
Lightweight concrete: In the field of lightweight concrete, hollow glass microspheres can significantly improve the adhesion, abrasion resistance and compression resistance of products. The products made of it are lightweight and stable, and are widely used in vehicles, ships and other manufacturing fields.
Synthetic wood: Hollow glass microspheres can also be used in the manufacture of synthetic wood, giving it a texture and structural properties similar to those of natural wood, as well as realizing the effects of heat insulation, lowering specific gravity and reducing thermal expansion.


