Solid Glass Microspheres (—)
Soda-lime and borosilicate solid glass microspheres (1µm–4.4mm) for filler, spacer and reflective-coating applications. Small quantities, prototypes and custom made-to-order specifications are welcome.
1 µmParticle Size Range
N/APurity Grade
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping
Solid Glass Microspheres — Grades & Specifications
Soda-lime and borosilicate solid glass microspheres (1µm–4.4mm) for filler, spacer and reflective-coating applications. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Solid Glass Microspheres |
|---|---|
| Chemical formula | — |
| CAS number | No CAS number (glass is a mixture, not a single compound) |
| Particle size | 1 µm – 4.4 mm |
| Purity | N/A (soda-lime or borosilicate glass composition) |
| Morphology | Solid spherical microspheres |
| Appearance | Clear/white beads |
| Density | Soda-lime 2.4–2.6 g/cc · Borosilicate ~2.2 g/cc |
| Typical applications | Filler applications, Spacer beads, Reflective coatings, Polymer composite filler |
Applications by Industry
Filler applicationsDensity-modifying and flow-improving filler.
Spacer beadsPrecision gap-control spacer applications.
Reflective coatingsRetroreflective road-marking and coating beads.
Polymer composite fillerFunctional filler for polymer composites.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade / purity (e.g. N/A)
- Particle size / target (µm, or mesh)
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What purity / grade options are available for Solid Glass Microspheres?
Solid Glass Microspheres is offered in the grades listed on this page (N/A (soda-lime or borosilicate glass composition)). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for Solid Glass Microspheres?
The typical size range supplied is 1 µm – 4.4 mm. Please specify your target value in the request form and we will confirm availability.
Can Solid Glass Microspheres be made to custom specifications?
Yes. Solid Glass Microspheres can be produced to order — grade, particle size and packaging can be customized to your specification. Select “Custom Order” in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship Solid Glass Microspheres internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
Related Products
Request a Quote for Solid Glass Microspheres
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.