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Glass Beads

Glass beads are high-quality spherical materials widely used in sandblasting, surface finishing, and road marking reflective systems. With excellent chemical stability, high strength, and controlled particle size, they deliver consistent performance in both industrial processing and safety applications.

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Description

Glass beads are produced from premium borosilicate glass through advanced melting and forming technology. They feature a uniform spherical structure, smooth surface, and precise particle size distribution ranging from 10 to 250 microns.

The beads have a lightweight structure with thin walls (1–2 microns), offering a balance of strength and low density. Their surface can be specially treated to achieve oleophilic and hydrophobic properties, making them easy to disperse in coatings, resins, and other material systems.

Due to their unique optical and mechanical properties, glass beads are not only used as blasting media but also play a key role in road safety applications, where they provide retroreflectivity for traffic markings.

Products Specification

For sandblasting

850-600 micron

425-300 micron

212-150 micron

#10

150-90 micron

#11

125-75 micron

#12

106-63 micron

#13

90-45 micron

Nominal Diameter (80%) XIAGUANG Metal Finishing Beads
Designation	US	Inches	Inches	Microns	Microns	Min %
Designation	Sieve	Max	Min	Max	Min	Round
A	20-30	0.0331	0.0234	850	600	65
AAA	25-45	0.0278	0.0139	710	355	65
B	30-40	0.0234	0.0165	600	425	65
C	40-60	0.0165	0.0098	425	250	75
AA	40-70	0.0165	0.0083	425	212	70
D	50-70	0.0117	0.0083	300	212	75
AB	50-80	0.0117	0.007	300	180	70
AC	60-120	0.0098	0.0049	250	125	80
AD	70-140	0.0083	0.0041	212	106	80
AE	100-170	0.0059	0.0035	150	90	85
AG	120-270	0.0049	0.0021	125	53	85
AH	170-325	0.0035	0.0017	90	45	85

Nominal Diameter MIL-PRF-9954
Designation	US	Inches	Inches	Microns	Microns	Min %
Designation	Sieve	Max	Min	Max	Min	Round
3	20-30	0.0331	0.0234	850	600	65
4	30-40	0.0234	0.0165	600	425	70
5	40-50	0.0165	0.0117	425	300	70
6	50-70	0.0117	0.0083	300	212	80
7	60-80	0.0098	0.007	250	180	80
8	70-100	0.0083	0.0059	212	150	80
9	80-120	0.007	0.0049	180	125	80
10	100-170	0.0059	0.0035	150	90	90
11	120-200	0.0049	0.0029	125	75	90
12	140-230	0.0041	0.0025	106	63	90
13	170-325	0.0035	0.0017	90	45	95

Product Features & Advantages

Excellent Chemical Stability

Glass beads are resistant to acids, alkalis, and corrosion, ensuring stable performance in harsh environments without degradation.

High Strength with Lightweight Structure

Despite their low density, they offer strong mechanical resistance and can withstand repeated use, reducing overall material consumption.

Uniform Spherical Shape for Consistent Results

The round shape ensures even impact distribution, providing smooth surface finishing in blasting and reliable light reflection in road applications.

Low Thermal Conductivity

Glass beads generate minimal heat during use, making them suitable for temperature-sensitive materials and precision processes.

Wide application of glass beads

The wide range of applications makes glass beads popular in industries such as sandblasting.

Sandblasting & Surface Cleaning

Used to remove rust, scale, and contaminants from metal surfaces while maintaining dimensional accuracy.

Surface Finishing & Polishing

Provides a smooth, satin-like finish on stainless steel, aluminum, and other materials without aggressive cutting.

Road Marking & Traffic Safety

Embedded in road paint or thermoplastic coatings, glass beads enhance nighttime visibility by reflecting vehicle headlights.

Industrial Fillers

Used in coatings, plastics, and composites to improve durability, reduce weight, and enhance performance.

Key Differences: Sandblasting vs. Road Marking Applications

While both types share similar base materials, their performance priorities differ-mechanical strength for blasting vs. optical performance for road safety.

Feature	Glass Beads for Sandblasting	Glass Beads for Road Marking
Main Function	Surface cleaning & finishing	Light reflection (retroreflectivity)
Particle Strength	Higher impact resistance	Optimized for optical performance
Surface Treatment	May include anti-static or dispersion coatings	Often coated for better adhesion to paint
Size Range	Wider range depending on blasting intensity	Controlled sizes for consistent reflection
Shape Requirement	High sphericity for smooth finishing	Very high sphericity for optimal light reflection
Reusability	Reusable multiple times	Typically single-use (embedded in coatings)
Performance Focus	Mechanical performance	Optical performance

Additional Benefits

Environmentally Friendly

Glass beads are non-toxic, recyclable, and produce less dust compared to many traditional abrasives, improving workplace safety.

Cost Efficiency

Their durability and reusability in blasting applications reduce long-term operational costs.

Equipment Compatibility

Suitable for pressure blasting machines, suction systems, and automated equipment, as well as road marking production lines.

Frequently Asked Questions

If you have any other questions, please contact customer service. We are always here to help.

Can glass beads be reused in sandblasting?

Yes, they have high durability and can be reused multiple times, depending on operating conditions.

What makes glass beads effective for road marking?

Their spherical shape and transparency allow them to reflect light efficiently, improving visibility at night.

Will glass beads damage the surface?

No, they provide a gentle peening effect rather than cutting, preserving the surface integrity.

Are glass beads environmentally safe?

Yes, they are non-toxic, recyclable, and generate minimal dust.

How do I choose the right size?

Fine: Precision cleaning or thin coatings

Medium: General blasting or standard road marking

Coarse: Heavy-duty cleaning or high reflectivity needs

Looking for reliable glass beads for sandblasting or road marking applications?
Contact us today for samples, technical consultation, and customized solutions tailored to your needs.

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