Surface finishing plays a critical role in modern manufacturing industries where both appearance and functional performance are important. Among different blasting media, S170 Glass Beads are widely used for precision surface finishing due to their smooth impact, non-cutting action, and ability to create a uniform satin finish.
What Are S170 Glass Beads?
S170 Glass Beads are spherical blasting media made from high-quality soda-lime glass, designed for non-aggressive surface finishing and cleaning applications.
Unlike angular abrasives such as silicon carbide or aluminum oxide, glass beads work through peening and polishing rather than cutting, which makes them ideal for delicate surfaces.
S170 refers to the particle size range, typically around 90–150 microns, depending on production standards.
This medium-fine size is one of the most commonly used grades in industrial blasting for achieving a consistent surface finish.
Why Are Glass Beads Preferred for Surface Finishing?
S170 Glass Beads are preferred because they clean and finish surfaces without removing base material or altering dimensional accuracy.
Their spherical shape allows them to:
- Produce a smooth satin or matte finish
- Clean without damaging the substrate
- Maintain dimensional accuracy of precision parts
- Reduce surface stress through peening effect
- Improve corrosion resistance of metal surfaces
This makes them ideal for applications where aesthetics and surface integrity are equally important.
Typical Application: Stainless Steel Satin Finishing
One of the most common applications of S170 Glass Beads is stainless steel surface finishing to achieve a uniform satin appearance.
This process is widely used in:
- Kitchen equipment
- Architectural stainless steel panels
- Medical instruments
- Food processing machinery
- Decorative metal components
S170 Glass Beads create a clean, consistent, non-directional finish that improves both appearance and corrosion resistance.
Why Not Use Angular Abrasives?
Compared with sharp abrasives like aluminum oxide or silicon carbide, glass beads offer a completely different finishing mechanism.
| Property | S170 Glass Beads | Aluminum Oxide | Silicon Carbide |
| Cutting action | None (peening) | High | Very High |
| Surface damage | Minimal | Moderate | High |
| Finish type | Satin / smooth | Rough | Aggressive |
| Dimensional change | Very low | Medium | High |
| Ideal use | Finishing | General blasting | Heavy-duty blasting |
This makes glass beads the preferred choice when surface appearance and integrity are more important than material removal.
What Materials Are Suitable for S170 Glass Beads?
S170 Glass Beads are widely used on:
- Stainless steel (304, 316)
- Aluminum and aluminum alloys
- Titanium components
- Precision machined parts
- Die casting parts
- Mold surface finishing
Because of their non-cutting nature, they are especially suitable for parts that require repeatable and controlled surface finishing.
Additional Benefit: Surface Strengthening (Peening Effect)
In addition to surface finishing, glass beads also provide a light peening effect, which helps:
- Reduce surface stress
- Improve fatigue resistance
- Enhance durability of metal parts
- Extend component service life
This is particularly important in aerospace, automotive, and precision engineering industries.
Blasting Equipment Recommendations
S170 Glass Beads are typically used in:
- Blast cabinets
- Manual blasting systems
- Automated finishing machines
- Closed-loop recycling systems
Because glass beads are recyclable, they are also cost-efficient in repeated industrial applications.
Conclusion
S170 Glass Beads are widely used in precision surface finishing because they provide a unique combination of smooth cleaning, aesthetic improvement, and surface protection without damaging the base material.
For industries requiring stainless steel satin finishing, delicate cleaning, or controlled surface peening, S170 Glass Beads remain one of the most reliable blasting media available.
At Xuchang Great Abrasive Co., Ltd., we supply high-quality glass beads with stable particle size distribution and excellent roundness for global surface finishing applications.
