Home > Spherical Particles > By Diameter > Microspheres (10-1000um)

Microspheres (10-1000um)

What are microspheres?

We define microspheres as spherical particles greater than 1micron and smaller than 1000micron (or 1mm) in diameter. Microspheres with diameters between 1micron and 10micron are larger than nanospheres, but on the bottom edge of microsphere particle sizes, and, therefore, we put them in their own Fine microspheres category.

What are different grades of microspheres?

We offer microspheres in various grades, defined by their particle size distribution. The tighter the particle size requirements, the more monodisperse the distribution, the smaller the tolerances, the more precise the microspheres, which also typically makes them more expensive. If the particle size distribution is wider, and the tolerances are larger, the diameter of each microsphere might fall into a larger range, which makes the product more economical. We arbitrarily divided microspheres in three grades: Spacer/Calibration/Monodisperse Grade, Classified Grade, and Bulk Grade.

What are spacer microspheres? What are monodisperse microspheres?

Spacer or Calibration grade, also known as Monodisperse Microspheres, is the most precise grade we offer. In this grade of microparticles greater than 95% of individual microspheres have the diameter that falls within the defined particle size (diameter) range. This is the most expensive grade due to the extensive processing time and intensive quality control process involved in manufacturing of this grade of product. Spacer spheres are invaluable for applications where precise bondline thickness and gap control are paramount.

What does "classified microspheres" mean?

Classified grade microspheres means that greater than 90% of microspheres are guaranteed to fall between the lower and upper diameter limits as specified. Most of Cospheric's products are produced in classified grade. It is a happy medium and a compromise between quality and price, for those applications that can tolerate some distribution of diameters. The lower and upper diameter parameters are clearly defined.

What are bulk grade microspheres?

Bulk grades of microspheres have the lowest requirements and typically a much wider range of diameters, which are defined individually for each product and might vary from product to product. This is the most economical option for applications where the exact microsphere diameter is not critical.


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Products 51-95 of 95
Yttria Stabilized Zirconia Microspheres, Spherical Particles, Beads
Product ID: YSZMS/YSZS
Ceramic spheres and microspheres with very high strength, toughness, and excellent wear and impact resistance. [more info...]
Price: $99.00-$197.50


Large PMMA Spheres
Product ID: PMMAMS-1.2
Clear Poly(Methyl Methacrylate) PMMA microspheres supplied in dry powder form
>90% in particle size range. Particle sizes between 150 and 750micron.
[more info...]
Price: $197.50


250nm Silver on PMMA Cores
Product ID: PMMAMS-AG
Conductive Silver-Coated Poly(Methyl Methacrylate) PMMA microspheres supplied in dry powder form
Highly Speherical>99% in particle size range. Sizes from 125 and 750micron
[more info...]
Price: $295.50-$348.50


Large PMMA Spheres
Product ID: PMMAS-1.2
Clear Poly(Methyl Methacrylate) PMMA Spheres supplied in dry powder form
>90% in particle size range.
[more info...]
Price: $55.00


Silver Coated PMMA Micorparticles 5-125um
Product ID: PMPMP-AG
Conductive Silver Coated Poly(Methyl Methacrylate) PMMA microparticles supplied in dry powder form
>90% in particle size range. Sizes from 5um to 125um
[more info...]
Price: $99.00-$148.50


Pink Polyethylene Microspheres Density 1.00g/cc<br>Pink (Magenta) Polymer Spheres for Flow Visualization and PIV
Product ID: PNKPMS-1.00
Pink Polyethylene Microspheres Density 1.00g/cc
Pink (Magenta) Polymer Spheres for Flow Visualization and PIV
[more info...]
Price: $99.00-$248.50


Gold-Coated Solid Glass Microspheres - High Density - Transparent Slightly Conductive Gold Coating on Glass Particles
Product ID: BTGMS-AU-4.49
Gold-Coated (~20nm coating thickness)
Solid Barium Titanate Glass Microspheres 4.49g/cc
Size range: 30-100um
[more info...]
Price: $279.50


Fluorescent Polymer Spheres (Green) 1.100g/cc density
Product ID: UVPMS-BG-1.100
Fluorescent green microspheres are designed with density of 1.100g/cc, ideal for simulating pollen dispersion.
Particles exhibit a strong fluorescent response and are color stable in solution.
[more info...]
Price: $197.50-$298.50


High Index of Refraction Solid Glass Microspheres - Density 4.1-4.2g/cc
Product ID: 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: $125.00-$184.50


High Index of Refraction Solid Glass Microspheres - Density 4.1-4.2g/cc
Product ID: 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: $62.50-$1,038.00


250nm Silver on PMMA Cores
Product ID: PMPMS-AG-1.3-1.6
Conductive Silver Coated Poly(Methyl Methacrylate) PMMA microspheres supplied in dry powder form
>90% in particle size range. Sizes from 45um to 135um
[more info...]
Price: $162.50-$198.50


Fluorescent Violet Polyethylene Microspheres<br>Density 1.00g/cc for Flow Visualization and PIV
Product ID: UVPMS-BV-1.00
Fluorescent Violet (Purple) Polyethylene Microspheres Density of 1.00g/cc
Spherical Flourescent Particles for Flow Visualization and PIV
[more info...]
Price: $148.50-$248.50


Fluorescent Violet Polyethylene Microspheres<br>Density 1.06g/cc
Product ID: UVPMS-BV-1.06
Fluorescent Violet (Purple) Polyethylene Microspheres Density of 1.06g/cc
Spherical Flourescent Particles
[more info...]
Price: $99.00-$148.50


Barium Sulfate White Polyethylene Polymer Microspheres - Particles for MRI or X-Ray Medical Applications - Density of 1.5g/cc
Product ID: BSPMS-1.5
Barium Sulfate White Polyethylene Polymer Microspheres - MRI or X-Ray Medical Applications - 1.5g/cc [more info...]
Price: $148.50-$248.50


Barium Sulfate White Polyethylene Polymer Microspheres<br>MRI or X-Ray Medical Applications - Density of 1.00g/cc
Product ID: BSPMS-1.00
Barium Sulfate White Polyethylene Polymer Microspheres - MRI or X-Ray Medical Applications - 1.00g/cc [more info...]
Price: $125.00-$248.50


Silver Metal Coated Soda Lime Solid Glass Microspheres<br>Density 2.5g/cc
Product ID: 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: $99.00-$248.50


Soda Lime Solid Glass Silver Metal Coated Microspheres<br>Density 2.5g/cc
Product ID: 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: $99.00-$148.50


UV Fluorescent Microspheres Density 0.98g/cc - Clear (Translucent) in Daylight, Brilliant Yellow-Green with UV illumination (365nm)
Product ID: UVYGPMS-0.97
UV Fluorescent Microspheres Density 0.97g/cc
Clear (Translucent) in Daylight, Brilliant Yellow-Green with UV illumination (365nm)
[more info...]
Price: $99.00-$248.50


Conductive Silver Metal Coated Hollow Glass Microspheres - Density 0.49g/cc
Product ID: HGMS-AG
Hollow Glass Microspheres with Conductive Silver Coating
Densities From 0.1g/cc to 0.8g/cc
Sizes from 5um to 150um
[more info...]
Price: $99.00-$279.50


"Conductospheres™" Conductive Silver Metal Coated Hollow Glass Microspheres
Product ID: HGMS-AG-1.08
Highly electrically conductive microspheres can be used as a filler that is lighter than solid silver.
Add to paints, adhesives and composites to provide electrical conductivity.
[more info...]
Price: $198.50-$248.50


Clear Polyethylene Particles 0.96g/cc - Various Sizes 0.6mm - 2.8mm
Product ID: CPB-0.96
Clear Polyethylene Particles 0.96g/cc - Various Sizes 0.6mm - 2.8mm
Polymer Beads >90% in Particle Size Range >75% Round
[more info...]
Price: $55.00


Green Polyethylene Microspheres Density 0.98g/cc<br>Translucent Green Spherical Polymer Microbeads
Product ID: GPMS-0.98
Green Polyethylene Microspheres Density 0.98g/cc
Translucent Green Spherical Polymer Microbeads
[more info...]
Price: $99.00-$248.50


Phosphorescent Yellow-Green Polyethylene Microspheres Density 1.14g/cc<br>Glow In the Dark Yellow-Green Response (470nm-600nm) - Long After-Glow
Product ID: PHYGPMS-1.14
Phosphorescent Yellow-Green Polyethylene Microspheres Density 1.14g/cc
Glow In the Dark Yellow-Green Response (470nm-600nm) - Long After-Glow
[more info...]
Price: $99.00-$248.50


Violet Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Purple MicroBead Particles for Flow Visualization and PIV
Product ID: VIOPMS-1.00
Violet Polyethylene Microspheres Density 1.00g/cc
Spherical Bright Purple MicroBead Polymer Particles for Flow Visualization and PIV
[more info...]
Price: $99.00-$248.50


Conductive Silver Metal Coated Hollow Glass Microspheres - 10-150micron
Product ID: M-60-0.16
Conductive Silver Metal Coated Hollow Glass Microspheres 0.15-0.42g/cc
Various Sizes 10-150micron.
[more info...]
Price: $99.00-$279.50


Conductive Silver Metal Coated Hollow Glass Microspheres - Density 0.49g/cc
Product ID: M-40-0.49
Conductive Silver Metal Coated Hollow Glass Microspheres 0.41-0.72g/cc
Various Sizes 10-90micron
[more info...]
Price: $99.00-$249.00


Rhodamine B Polyethylene Microspheres Density 0.98g/cc - Peak Excitation Wavelength: -540nm (Green)<br>Emission Wavelength: Weak Orange response -595nm - Daylight Color: Pinkish Red
Product ID: RHBPMS-0.98
Rhodamine B Polyethylene Microspheres Density 0.98g/cc - Peak Excitation Wavelength: ~540nm (Green)
Emission Wavelength: Weak Orange Response ~595nm - Daylight Color: Pinkish Red
[more info...]
Price: $99.00-$248.50


Yellow Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Yellow Particles for Flow Visualization and PIV
Product ID: YPMS-1.00
Yellow Polyethylene Microspheres Density 1.00g/cc
Spherical Bright Yellow Particles for Flow Visualization and PIV
[more info...]
Price: $125.00-$299.00


Highly Electrically Conductive Hollow Glass Microspheres
Product ID: M-18-Ni-0.69
Electrically conductive nickel-coated microspheres with density of 0.69g/cc.
Particle Size Range 5-30um.
[more info...]
Price: $85.00


Barium Titanate Solid Glass Microspheres and Spheres
Product ID: 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: $99.00-$248.50


Highly Electrically Conductive Hollow Glass Microspheres
Product ID: M-18-AG-0.75
Highly electrically conductive silver-coated microspheres with density of 0.75g/cc
Particle Size Range 5-30um. 45dB of EMI shielding at 20% loading.
[more info...]
Price: $99.00-$1,481.00


UV Fluorescent Microspheres - Yellow in Daylight, Blue-Green in UV Light 0.98g/cc - Bright Fluorescent Polymer Beads, Particles
Product ID: UVBGPMS-0.98
UV Fluorescent Microspheres - Yellow in Daylight, Blue-Green in UV Light 0.98g/cc
Bright Fluorescent Polymer Beads, Particles
[more info...]
Price: $99.00-$148.50


Zinc-coated Hollow Glass Microspheres 1-30um - Spherical Microparticles, Beads, Glass Spheres
Product ID: HGMS-ZnO-0.66
Zinc Oxide (ZnO) Hollow Glass Microspheres 1-30um [more info...]
Price: $148.50


Blue Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 100X magnification
Product ID: 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 ID: 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 ID: 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


Orange-Yellow Fluorescent-Coated Glass Microspheres - Various sizes and densities fluorescent Orange-Yellow glass, fluorescent Orange-Yellow glass spheres, microspheres, particles, microparticles, beads, UV
Product ID: HCMS-FMOY
Fluorescent Orange-Yellow Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Orange-Yellow under daylight and UV illumination (594nm peak emission)
[more info...]
Price: $495.00


Red Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 200X magnification
Product ID: 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: $375.00-$550.00


Violet Fluorescent-Coated Glass Microspheres - Various sizes and densities fluorescent Violet glass, fluorescent Violet glass spheres, microspheres, particles, microparticles, beads, UV
Product ID: 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


Yellow Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 200X magnification
Product ID: HCMS-FMY
Fluorescent Yellow Hemispherical Coating on Borosilicate, Soda Lime or Barium Titanate Solid Glass Spheres
Color: Bright Yellow under daylight and UV illumination (525nm 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 ID: HCMS-GMS-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


Nickel-plated Hollow Glass Microspheres 5-30um - Metal Coated Glass Beads, Spheres, Microparticles
Product ID: HGMS-Ni
Nickel-plated Hollow Glass Microspheres 5-30um [more info...]
Price: $99.00-$565.00


Photocatalytic Microspheres for Water Treatment, Titanium Dioxide Coated Hollow Glass Microspheres
Product ID: Photospheres
Photocatalytic Microspheres for Water Treatment, Titanium Dioxide Coated Hollow Glass Microspheres [more info...]
Price: $99.00-$832.50


Isospheres - Seeding Particles to Maximize Light Scattering for PIV Applications.
Product ID: Isospheres
Seeding Particles to Maximize Light Scattering for PIV Applications. [more info...]
Price: $99.00-$294.00


Titanium Metal Microspheres - Titanium Powder - Spherical Microparticles - Biocompatible Metal for Medical Devices - 4.5g/cc (4.5g/ml) true particle density
Product ID: TIMMS-4.5
Titanium micropsheres are made from commercially pure Titanium (99.5+%) metal. Spherical metal microparticles, metal powder. Titanium is a bio-compatible metal commonly used for implants, and medical & dental devices. Titanium also has a unique true particle density of 4.5g/cc (4.5g/ml). [more info...]
Price: $148.50-$297.00


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Products 51-95 of 95