shot blasting glass beads
Shot blasting glass beads have a transparent appearance resembling small spheres. They are colorless and odorless, primarily used for cleaning and strengthening surface quality during shot blasting processes. During use, they help maintain the precision of workpieces while achieving both cleaning and smoothing effects on surfaces. Apart from their shot blasting effect, these glass microbeads also provide reflective properties when used in road markings and airport runways, enhancing visibility at night.
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 |
shot blasting glass beads
Different sizes of glass microbeads produce different surface effects when sandblasting. Therefore, we offer various sizes of glass microbeads for your reference, ranging from a few micrometers to several millimeters.
Hence, you can choose the appropriate size based on your requirements for surface treatment effects.
From the perspective of particle size, Shot blasting glass beads are classified into fine, medium, coarse, and extra coarse grades. Fine-grade microbeads: Typically ranging from 50 micrometers to 250 micrometers, these are mainly used for relatively smooth and lightly soiled surfaces.
Their primary goal is to remove surface dirt and clean lightly coated surfaces.
Medium-grade Shot blasting glass beads: When surface treatment requires moderate cleaning intensity, medium-grade glass microbeads with particle sizes ranging from 250 micrometers to 500 micrometers are used. They are employed for tasks such as paint removal, oxidation layer cleaning, and stainless steel surface cleaning.
Coarse and extra coarse-grade Shot blasting glass beads are mainly suitable for places requiring intense cleaning, such as thick coatings and stains. The particle sizes of these coarse and extra coarse-grade microbeads are much larger than those of medium and fine-grade glass microbeads.
We emphasize that the choice of size depends on the object being surface treated and the desired surface effect. Factors such as the material of the workpiece, the required sandblasting effect, and the type of sandblasting equipment used must be considered when selecting the size.
These coarse and extra coarse-grade glass microbeads are mainly used for surface treatments requiring deep cleaning and surface treatment of workpieces.
In conclusion, careful consideration is required when selecting the size of glass microbeads. Factors such as the hardness of the workpiece, surface roughness, and the desired sandblasting effect must be taken into account to choose the appropriate size.
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 pressure used in different glass bead blasting processes varies. Typically, we select different pressures based on the surface treatment requirements of the workpiece and the desired sandblasting effect.
We need to consider factors such as the type of blasting media and the blasting distance to determine the pressure parameters used. Shot blasting glass beads is essential to consider the blasting equipment we use because it directly affects the blasting pressure.
Generally, the pressure ranges from 40 to 80 PSI and may vary depending on factors such as the size of the Shot blasting glass beads, nozzle specifications, equipment type, and the desired surface treatment effect.
The pressure provided is for reference only, and the final pressure used must be determined based on actual operational conditions. For instance, for fine surface treatment or soft materials, lower blasting pressures may be used, while higher pressures may be employed for achieving rapid surface treatment effects with high roughness.
During practical application, it is essential to follow safety rules and operating guidelines to ensure not only the achievement of surface treatment effects but also the safety of operations.
Attention should be paid to environmental protection and proper handling of waste generated during the sandblasting process.
