Glass beads Physical Properties:
1. Density: Glass microspheres typically have a density between 0.15 and 0.5 g/cm³, much lower than ordinary glass (approximately 2.5 g/cm³). Their bulk density is even lower, making them ideal for lightweight fillers.
2. Particle Size: The particle size of glass microspheres can range from a few micrometers to several hundred micrometers.
Different sizes can be selected based on application needs. Smaller microspheres are used in specialized coatings and fillers, while larger ones are suitable for broader surface treatments.
3. Shape: Glass microspheres are usually spherical or nearly spherical, which helps reduce internal friction and stress concentration in materials.
4. Hardness: With a hardness of 5 to 7 on the Mohs scale, glass microspheres maintain their shape and integrity across various applications and enhance frictional properties.
5. Compressive Strength: They possess a certain level of compressive strength, making them suitable for applications requiring pressure resistance.
glass beads
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 |
glass beads
Under optimal conditions—considering material quality, production methods, and application environment—hollow glass microspheres can resist temperatures up to approximately 600°C.
If you require high-temperature-resistant glass microspheres, please let us know your specific requirements. We can recommend high-temperature glass microspheres that can endure temperatures up to 1000°C, thanks to our special preparation and production techniques.
You can also inform us about your specific application environment, and we will customize the glass microspheres and coatings to meet your high-temperature requirements.
The temperature resistance of glass microspheres depends on their raw materials and manufacturing process.
Generally, the high-temperature resistance of coatings, including those with glass microspheres, is determined by the materials used, preparation techniques, and the application environment.
Typically, glass microspheres can withstand temperatures up to 300°C.
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 |
The manufacturing materials, processes, and applications of glass microspheres significantly influence their physical and chemical properties. Here are the key properties:
Chemical Properties: 1. Chemical Resistance: Glass microspheres exhibit excellent chemical stability, resisting salts, acids, bases, and corrosion.
Their primary chemical components include silica (SiO2), sodium oxide (Na2O), calcium oxide (CaO), and alumina (Al2O3).
2. Thermal Stability: They maintain chemical stability and good thermal stability between 600°C and 1300°C, retaining their shape and properties even in high-temperature applications.
In normal conditions, they do not react with other chemicals, maintaining consistency and stability.
3. Weather Resistance: Glass microspheres can withstand UV radiation, weathering, and temperature fluctuations, making them suitable for outdoor use.
4. Solubility: They have extremely low solubility, not dissolving in water or other solvents.
5. Surface Properties: Special processing endows glass microspheres with beneficial properties like wettability and dispersibility. They can also be treated to be hydrophobic or hydrophilic, enhancing their surface smoothness.
