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Home > Spherical Particles > By Material > Glass Spheres and Microspheres > Solid Glass Particles

Solid Glass Particles

Solid Glass Microspheres, also called glass beads, provide multiple benefits including enhanced processing, excellent chemical and heat resistance, thermal stability, low oil absorption, and are used in automotive, electrical, household appliance, adhesives, packaging, paint and construction industries. Glass is non-toxic, extremely stable and recyclable.

Compared to other microspheres, such as plastic or hollow glass, solid glass spheres have a high density of about 2.2g/cc for borosilicate glass spheres, 2.5g/cc for soda lime glass spheres, and 4.49g/cc for barium titanate glass spheres. Solid glass spheres have high crush strength which makes them suitable for high stress applications where microspheres are exposed to a lot of stress during processing or application. There are many advantages to using glass microspheres:

  • Solid glass microbeads act as mini-magnifying glasses to deliver visually truer color
  • Clarify and magnify the visual impact of pigments and metallic flakes
  • Create a richer, wetter, deeper look
  • Visually extend expensive color-shift pigments to create cost-effective new looks
  • Facilitate even dispersion of colorants and reflectors
  • Act as mini-ball bearings to improve material flow and reduce flow lines
  • Provide color consistency from all viewing angles
  • Impart durability and chip resistance due to hardness of glass
  • Offer a durable non-deformable spacer particles for bond line applications
CATEGORIES
Solid soda lime glass, also know as soda lime silicate glass, is the most common type of solid glass microspheres available. These particles are offered in a wide selection of sizes and grades (precision, classified, bulk and spacer) with coated and uncoated options.
Borosilicate glass is well-known for its durability, low coefficient of expansion, low density, high softening point, high resistance to acids and thermal shock, compared to other glass formulations. The microsphere choice for demanding corrosive environments.
Barium titanate glass spheres offer a higher Refractive Index [RI] than most other glass formulations. Depending on the grade of material reflecting index of barium titanate glass is from 1.9 to 2.2 compared to ~1.5 of soda lime and borosilicate glasses. Barium titanate glass microspheres will reflect back more light directly to the viewer.
A fluorescent coating is applied to half of each microsphere, making the glass particles appear colorful, fluorescent, and highly visible in daylight. Coated glass microspheres exhibit bright fluorescent response under ultraviolet (UV) light enabling these particles to function spectacularly as fluorescent high visibility tracers.

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Products 1-26 of 26
Solid Soda Lime Glass Microspheres 2.5g/cc<br>Particle Sizes between 1micron and 7.1mm
Product Line: SLGMS
Classified Grades of Soda Lime Solid Glass Microspheres.
>85% spherical >90% in size range. Many particle sizes between 1um and 7.1mm.
[more info...]
Price: $57.75-$261.00


Bulk Grades of Solid Soda Lime Glass Microspheres 2.5g/cc. Optional Fluorochemical and Silane Coatings.<br>Mean Diameters 3-6um, 8-12um, 35-45um, 65-75um.
Product Line: P2000SL
Bulk Grades of Solid Soda Lime Glass Microspheres 2.5g/cc. Optional Fluorochemical and Silane Coatings.
Mean Diameters 3-6um, 8-12um, 35-45um, 65-75um
[more info...]
Price: $52.50-$174.00


Spacer Spheres - Monodisperse Solid Soda Lime Microspheres - Calibration Grade
Product Line: S-SLGMS
Bondline Spacer / Calibration/Monodisperse Grades of Soda Lime Solid Glass Microspheres.
>90% spherical and 95% in size range. Tight particle size ranges between 15micron and 219micron in diameter.
[more info...]
Price: $131.25-$312.50


Borosilicate Solid Glass Microspheres 2.2g/cc<br>Many Sizes 20micron to 6150mm
Product Line: BSGMS-2.2
Classified Grades of Borosilicate Solid Glass Microspheres 2.2g/cc
>90% spherical and >90% in size range. Particle Sizes Between 25micron and 6150um (6.2mm)
[more info...]
Price: $131.25-$313.95


Retroreflective Half-Shell Aluminum Coated Solid Glass Microspheres
Product Line: P2453BTA
Retroreflective Half-shell Aluminum Coating on Solid Barium Titanate Glass Microspheres
Density 4.1-4.5g/cc. Particle Size 30-100um. Uncoated, Silane and Fluorochemical Coatings
[more info...]
Price: $103.95-$557.00


Barium Titanate Solid Glass Microspheres and Spheres
Product Line: BTGMS
Classified Grades of Barium Titanate Solid Glass Microspheres - Density: 4.07-4.26g/cc - Sizes: 5um to 1000um (1.0mm) Index of Refraction: ~1.9 [more info...]
Price: $103.95-$261.00


Aluminum-Coated Solid Barium Titanate Glass Microspheres 4.2g/cc - 30-100um Diameter
Product Line: BTGMS-Al
Full Aluminum Coating (~500nm) on Solid Barium Titanate Glass Microspheres. Microspheres with high density and opacity offer a unique high-visibility solution to imaging in ultrasonic systems, optics and x-rays. [more info...]
Price: $131.25


Barium Titanate Solid Glass Microspheres 30-100 micron and 0.3-1mm Diameter
Product Line: BTGMS-B
Bulk Grades of Barium Titanate Solid Glass Microspheres - 4.05-4.25g/cc - Sizes: 30-100um and 0.3-1000um (1.0mm) - Index of Refraction: 1.9 [more info...]
Price: $52.50-$165.90


Gold-Coated Solid Glass Microspheres - High Density - Transparent Slightly Conductive Gold Coating on Glass Particles
Product Line: BTGMS-AU-4.49
Gold-Coated (~20nm coating thickness)
Solid Barium Titanate Glass Microspheres 4.49g/cc
Size range: 30-100um
[more info...]
Price: $293.48


High Index of Refraction Solid Glass Microspheres - Density 4.1-4.2g/cc
Product Line: BTGMS-HI
Classified Grades of High Index of Refraction Barium Titanate Solid Glass Microspheres
Density: 4.1-4.2g/cc
Sizes: 60um to 600um (0.6mm)
Index of Refraction: >1.93
[more info...]
Price: $131.25-$193.50


High Index of Refraction Solid Glass Microspheres - Density 4.1-4.2g/cc
Product Line: BTGMS-HI-B
Classified Grades of High Index of Refraction Barium Titanate Solid Glass Microspheres
Density: 4.1-4.2g/cc
Sizes: 60-75um, 70-90um, 125-190um, 180-265um, 325-600um
Index of Refraction: >1.93
[more info...]
Price: $107.10-$895.00


Silver Metal Coated Soda Lime Solid Glass Microspheres<br>Density 2.5g/cc
Product Line: SLGMS-AG
Conductive Silver Metal Coated Solid Soda Lime Glass Microspheres - Sizes between 1 and 180micron.
>90% in particle size range and >85% spherical particles.
[more info...]
Price: $103.95-$261.00


Soda Lime Solid Glass Silver Metal Coated Microspheres<br>Density 2.5g/cc
Product Line: SLGMS-AG-B
Conductive Silver Metal Coated Solid Soda Lime Glass Microspheres - Bulk Sizes between 11 and 160micron.
>80% in particle size range and >85% spherical particles.
[more info...]
Price: $103.95-$157.00


Precision Polished Soda Lime Glass Spheres 1.5mm
Product Line: P-SLGS-2.5
Precision Polished Grades of Soda Lime Solid Glass Spheres.
>99% spherical +/-20um Diameter Tolerance
[more info...]
Price: $47.25-$179.55


Solid Soda Lime Glass Spheres 2.5g/cc<br>Particle Sizes between 850um and 7.1mm
Product Line: SLGS-2.5
Classified Grades of Soda Lime Solid Glass Spheres.
>85% spherical >90% in size range. Many particle sizes between 850um to 4.4mm
[more info...]
Price: $57.75-$173.25


Barium Titanate Solid Glass Microspheres and Spheres
Product Line: BTGMS-ND2.2
Classified Grades of Barium Titanate Solid Glass Microspheres
Density: 4.35-4.38g/cc
Sizes: 5um to 85um
Index of Refraction: ~2.2
[more info...]
Price: $103.95-$261.00


Borosilicate Solid Glass Spheres 2.2g/cc<br>Many Sizes 850micron to 6.15mm
Product Line: BSGS-2.2
Classified Grades of Borosilicate Solid Glass Microspheres 2.2g/cc
>90% spherical and >90% in size range. Particle Sizes Between 850um to 6.15mm
[more info...]
Price: $131.25-$183.75


Precision Polished Borosilicate Glass Spheres 2.00mm
Product Line: P-BSGS-2.2
Precision Polished Grades of Borosilicate Solid Glass Spheres.
>99% spherical +/-20um Diameter Tolerance
[more info...]
Price: $91.00-$151.00


Blue Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 100X magnification
Product Line: HCMS-FMB
Fluorescent Blue Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Blue under daylight and UV illumination (445nm peak emission)
[more info...]
Price: $295.00-$495.00


Green Fluorescent  Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 100X magnification
Product Line: HCMS-FMG
Fluorescent Green Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Green under daylight and UV illumination (515nm peak emission)
[more info...]
Price: $295.00-$600.00


Orange Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 200X magnification
Product Line: HCMS-FMO
Fluorescent Orange Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Orange under daylight and UV illumination (606nm peak emission)
[more info...]
Price: $495.00


Red Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 200X magnification
Product Line: HCMS-FMR
Fluorescent Red Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Red under daylight and UV illumination (607nm peak emission)
[more info...]
Price: $495.00-$550.00


Violet Fluorescent-Coated Glass Microspheres - Various sizes and densities fluorescent Violet glass, fluorescent Violet glass spheres, microspheres, particles, microparticles, beads, UV
Product Line: HCMS-FMV
Fluorescent Violet Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Violet under daylight and UV illumination (636nm peak emission)
[more info...]
Price: $495.00


Hemispherically Coated Microspheres - Black Paramagnetic Coating on Glass Spheres Black Paramagnetic glass, glass spheres, microspheres, particles, microparticles, beads
Product Line: HCMS-BLK
Paramagnetic Black Coated Glass Microspheres, Spheres, Beads, Microparticles
Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
[more info...]
Price: $495.00-$595.00


Soda Lime Solid Glass Mixing Spheres 2.55g/cc - Classified Grades - Particle Diameters 1.5mm to 7.1mm mixing media, stiring spheres, high roundness, particle, beads, spherical,
Product Line: MGS-2.55
Solid Soda Lime Glass Spheres High >98% spherical >90% in particle size range.
Index of Refraction is 1.5
[more info...]
Price: $57.75-$159.00


Precision Polished Soda Lime Glass Spheres 1.5mm
Product Line: P-GS
Precision Polished Grades of Solid Glass Spheres.
>99% spherical; ≤20um Roundness
10.0mm to 8.00mm ±20um Diameter
Borosilicate (2.2g/cc) & Soda Lime Glass (2.5g/cc)
[more info...]
Price: $47.25-$179.55


Products 1-26 of 26

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About the Company:

Cospheric is a global leader in manufacturing and distribution of precision nanospheres, microspheres, and larger precision spherical particles. Scientists and engineers worldwide rely on us as a proven source to fulfill their needs for microparticles in narrow size ranges, wide selection of colors, densities, properties and formulations. We leverage our extensive technical expertise in micropowders to help each customer find an optimal microparticle solution for their needs. We ship worldwide daily out of our Santa Barbara, CA manufacturing facility.
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