Bulk Supply Glass microspheres for Road Safety Marking &Surface Treatment

These glass microspheres are manufactured from high-purity soda-lime-borosilicate glass using a refined process involving high-temperature melting, high-speed atomization, precision quenching, and multi-stage screening. They are solid, spherical, ultra-fine glass particles characterized by perfect sphericity, excellent light transmission, and uniform particle size. Free from crystalline silica, they are safe, non-toxic, and environmentally friendly.

The microspheres exhibit excellent chemical inertness, high hardness, and resistance to wear, corrosion, and electricity; they possess stable physical properties and are resistant to deformation and pulverization. Through meticulous dedusting and screening, the surfaces are clean and impurity-free. Suitable for a wide range of applications—including reflective coatings, industrial sandblasting, material filling, decorative crafts, and cosmetics/personal care—they serve as high-end, versatile functional consumables for industrial and decorative use.

⚠️ Important Note: As these are precision-processed industrial particles, slight variations in particle size or luster may occur between batches due to minor adjustments in raw materials or processing. The presence of a small number of microspheres with tiny air bubbles or minor imperfections is a normal manufacturing characteristic and does not constitute a quality defect.

1. High Roundness and Transparency; Excellent Reflectivity

These beads feature a uniform spherical shape and high light transmittance, ensuring stable optical refraction. When used in road markings, reflective paints, and reflective films, they significantly boost nighttime light reflection and enhance visibility and safety, serving as a core component of traffic reflective materials.

2. Chemically Inert and Stable; Corrosion and Weather Resistant

Made of inert glass, the material does not react with acids, alkalis, solvents, or resins. It offers excellent resistance to aging, temperature extremes, and rain erosion. It remains durable for long-term outdoor use without yellowing, losing effectiveness, or degrading, making it suitable for complex operating environments.

3. Hard and Wear-Resistant; Recyclable

With a Mohs hardness of 6.5–7.0, the material is hard, impact-resistant, and wear-resistant. It does not easily shatter or generate dust pollution during sandblasting or polishing processes. It can be recycled multiple times with low loss rates, significantly reducing usage costs.

4. Precise and Uniform Particle Size; Highly Versatile

The entire product line undergoes multi-stage precision screening, resulting in a concentrated particle size distribution free from oversized particles or fine powder residue. With excellent flowability and low oil absorption, the beads are perfect for filling various substrates—such as resins, coatings, and plastics—enhancing the final molded product's quality.

5. Comprehensive Specifications; Flexible Supply

Standard specifications include 40, 80, 120, 150, 200, 300, and 500 mesh sizes. Custom options are available for specific particle sizes, high-transparency/high-brightness grades, and surface-modified versions, catering to diverse needs ranging from individual DIY projects to SME mass production and large-scale engineering procurement.

1. Traffic Safety & Reflective Applications: Materials include reflective aggregates for hot-melt and cold-applied road markings, traffic and warning signs, reflective sheeting, automotive reflective decals, and reflective coatings for license plates. These core materials enhance nighttime visibility and ensure traffic safety.

2. Industrial Sandblasting & Polishing: Used for surface treatment—including rust removal, descaling, and matte finishing—on hardware molds, aluminum alloys, stainless steel, precision instruments, and medical devices. The process yields a smooth, scratch-free finish without damaging the substrate or posing silica dust hazards, making it ideal for the precision finishing of components.

3. Electronics & Electrical Industry: Serves as cable insulation material and a filler for electronic packaging resins. It offers high insulation, low water absorption, and stable heat dissipation, thereby enhancing the insulation protection and service life of electronic components.

Q1: Are the glass beads solid or hollow? Do they contain dust?

Our standard products are solid glass beads; they feature high hardness, compressive strength, and wear resistance, making them suitable for most industrial and decorative applications. Hollow versions are also available upon request. The products undergo multiple washing and screening processes to ensure minimal dust content, allowing for immediate use upon opening; for precision applications, a quick pre-screening or dedusting step can be performed.

Q2: Will the glass beads fade or become cloudy?

Made from pure glass material without artificial dyes or coatings, these beads possess stable physical and chemical properties. Under normal indoor or outdoor use, they will not fade, yellow, or turn cloudy; they are resistant to sunlight and rain corrosion, offering exceptional durability.

Q3: Can they be reused?

Yes. Glass beads are impact-resistant and durable. After sandblasting or polishing operations, impurities can be filtered out to allow for reuse. With a very low loss rate, they are more cost-effective and offer better value than consumables like quartz sand or emery.

Q4: Will they crumble or crack during long-term outdoor use?

Glass is a stable material that withstands high and low temperatures, aging, and UV radiation. They will not crumble, crack, or fail during long-term exposure to outdoor or humid environments, making them ideal for applications such as road engineering and outdoor flooring.

Q5: Do you support large-scale project procurement and customization?

Yes. We handle large-volume orders for road engineering, industrial mass production, and building material processing. We also support customization for specific specifications—such as particle sizes, high-reflectivity finishes, surface modifications, and hollow beads—and can provide samples for quality verification.