Hollow Spheres for Plastics : Hollow glass beads are an innovative material that is mainly characterized by having a hollow structure with an outer shell made of high-strength glass material and an inner cavity of air or other low-density substance. This material has a wide range of applications in many fields, one of which is the plastics industry.
Hollow Spheres for Plastics
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 Spheres for Plastics
Hollow glass spheres, this ingenious material, with its low density, hollow structure and chemical stability, brings unprecedented advantages to your products. Now, let’s explore its outstanding performance and wide range of applications together!
Product Characteristics
Lightweight excellence: Hollow glass spheres have a density of 0.15-0.60 g/cm3, which is lightweight and efficient to meet the needs of your different products.
Hollow microform design: 10-250 micron diameter spheres with high hollowness, good flowability and low viscosity, easy to process and apply.
Strong chemical stability: borosilicate as the main ingredient, with excellent heat insulation, flame retardant, corrosion resistance and pressure resistance, to ensure the long term stability of the product.
I. Ideal companion for coating/painting products
Hollow glass ball is an excellent choice for coating/painting products. It can bring significant advantages to maintenance coatings, powder coatings, coiled steel coatings, etc:
Cost saving: Compared with other materials, hollow glass spheres have a smaller surface area and low oil absorption value, which reduces the amount of resin, VOC, etc., improves the solid content and lowers the production cost.
Easy construction: Its unique spherical structure and low viscosity make the coating/painting products flow well, with uniform color and gloss, easy to construct and paint.
Safe and stable: chemically stable, not easy to react with other substances, not easy to dissolve at high temperature, not easy to break at high pressure, safe and secure storage.
Efficient filling of plastic/adhesive 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 |
Hollow glass spheres are also suitable for plastic/adhesive products, bringing the following advantages to your products:
Reducing the quality: Its low density characteristic makes the use of hollow glass balls can significantly reduce the quality of products and save the production and transportation costs under the same space volume.
Improve production efficiency: good fluidity and stability make plastic/adhesive products less prone to warping, shrinkage and deformation, improving production efficiency.
Reduce plasticizer usage: low oil absorption reduces plasticizer usage, ideal for producing molds and PVC soft products.
High temperature resistance and insulation: good thermal stability, high melting point, enhance the product’s performance of high temperature resistance, insulation, acid and alkali resistance, and at the same time, it has the function of heat insulation and heat preservation.
Safe and environmentally friendly: low crystalline silica content, no carcinogenic substances, can be used in the production of food contact grade plastics or standard toy products.
