Reflective glass beads for paint : In order to better present the reflective properties of glass beads in road materials, we need to make a clear indication of the proportioning range.
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 |
reflective glass beads for paint
This time, we mainly talk about the different proportioning ratios when using glass beads in volumetric road marking materials and water-based road marking materials.
1. in the target material of oil-based system, we suggest you to use the proportion of allergy between 3%~10%, because the solvent-based coatings have higher dispersion requirements for glass beads, so it needs a lower adding proportion.
2. In water-based road materials, we suggest you use the proportion between 2~5%. Because the dispersibility and stability of glass beads in water-based system is particularly high.
3. The proportion of glass beads used in powder coatings is the highest, which is basically between 10% and 30%, depending on the thickness of your coating and the expected reflective effect you can expect to achieve.
The above are just our suggestions and we hope that your actual tests will help you to decide what percentage you need to use in the end. You have to consider the effectiveness of the final coating as well as its cost.
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 amount of reflective glass beads used in road paints is a parameter that is determined according to specific criteria and requirements.
The function of reflective glass beads in road paints is to enhance the night visibility of markings by their reflective properties.
According to national regulations, 18% to 25% of glass beads must be added to hot-melt reflective marking paints.
This amount is to ensure that the road marking has good reflective properties at night or in low light conditions to improve driving safety.
In order to save cost, the amount of reflective glass beads may be reduced, resulting in poor reflective effect of the marking.
