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Microsphere market is fragmented and highly diverse in order to serve numerous widely varying applications that microspheres are used for, ranging from bond line spacers in electronics, to drug delivery vehicles in pharmacology, to contamination studies in chemical process troubleshooting, to microscopy size standards in applied physics, to modeling fluid flow in airspace and distribution of particles in agriculture. The list of precise high-quality microspheres with specific properties designed for unique applications is endless and getting longer every day as new requirements are being defined by our customers. For this reason Cospheric currently offers over 1500 unique microspherical, nanospherical and spherical products with different properties and always has more products coming through the pipeline. For those applications were NIST-traceability is important, Cospheric offers NIST-traceable Microspheres Certificate of Analysis, which can be purchased for any product.

We offer conductive, paramagnetic, fluorescent, phosphorescent, photocatalytic, neutrally-buoyant, monodisperse spacer spheres (particle size standards), density marker beads, custom density, custom coatings and many other properties of microspheres. If you don't see the microspheres with the exact properties you are looking for, please contact a microparticles expert for a recommendation or a custom quote.


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Products 1-50 of 76
Density Marker Beads for use in Density Gradients
Product ID: DMB
Density Marker Beads for Density Gradients [more info...]
Price: $62.50-$375.00


Precision Polished Soda Lime Glass Spheres 1.5mm
Product ID: P-GS
Precision Polished Grades of Solid Glass Spheres.
>99% spherical; ≤20um Roundness
0.70mm to 7.00mm ±20um Diameter
Borosilicate (2.2g/cc) & Soda Lime Glass (2.5g/cc)
[more info...]
Price: $45.00-$142.00


Spacer Spheres - Monodisperse Solid Soda Lime Microspheres - Calibration Grade
Product ID: S-SLGMS-2.5
Bondline Spacer / Calibration/Monodisperse Grades of Soda Lime Solid Glass Microspheres.
>90% spherical and 95% in size range. Tight particle size ranges between 18micron and 219micron in diameter.
[more info...]
Price: $125.00-$248.50


High Index of Refraction Glass Spheres 75-80um
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
Index of Refraction: >1.93
[more info...]
Price: $125.00-$184.50


Barium Titanate Solid Glass Microspheres and Spheres
Product ID: BTGMS-4.49
Classified Grades of Barium Titanate Solid Glass Microspheres
Density: 4.0-4.5g/cc
Sizes: 5um to 1000um (1mm)
Index of Refraction: ~1.9
[more info...]
Price: $99.00-$248.50


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


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


Barium Titanate Solid Glass Microspheres 30-100 micron and 0.3-1mm Diameter
Product ID: BTGMS-4.49-B
Bulk Grades of Barium Titanate Solid Glass Microspheres
Density: 4.0-4.5g/cc
Sizes: 30-100um and 0.3-1.0mm in Diameter.
Index of Refraction: 1.9
[more info...]
Price: $50.00-$158.00


High Index of Refraction Glass Spheres 325-600um
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


Retroreflective Half-Shell Aluminum Coated Solid Glass Microspheres
Product ID: P2453BTA-4.2 30-100um
Retroreflective Half-shell Aluminum Coating on Solid Barium Titanate Glass Microspheres
Density 4.2g/cc. Particle Size 30-100um. Uncoated, Silane and Fluorochemical Coatings
[more info...]
Price: $99.00-$550.00


Blue Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Product ID: FMB-1.3 1-5um
Blue Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Excitation and Emission Wavelength Spectra. Peak at 445nm.
[more info...]
Price: $99.00


Green Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Product ID: FMG-1.3 1-5um
Green Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Excitation and Emission Wavelength Spectra. Peak at 515nm.
[more info...]
Price: $99.00


Yellow Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Product ID: FMY-1.3 1-5um
Yellow Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Excitation and Emission Wavelength Spectra. Peak at 525nm.
[more info...]
Price: $99.00


Orange-Yellow Fluorescent Microspheres 1-5micron (um) - Emission Wavelength Spectra 594nm Peak, Excitation Wavelength Specta 460nm Peak
Product ID: FMOY-1.3 1-5um
Orange-Yellow Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Emission Wavelength Spectra 594nm Peak, Excitation Wavelength Specta 460nm Peak
[more info...]
Price: $99.00


Orange Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Product ID: FMO-1.3 1-5um
Orange Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Excitation and Emission Wavelength Spectra. Peak at 606nm.
[more info...]
Price: $99.00


Red Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron
Product ID: FMR-1.3 1-5um
Red Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Excitation and Emission Wavelength Spectra. Peak at 607nm.
[more info...]
Price: $99.00


Violet Fluorescent Microspheres 1-5micron (um) - Emission Wavelength Spectra 636nm Peak, Excitation Wavelength Specta 584nm Peak
Product ID: FMV-1.3 1-5um
Violet Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Emission Wavelength Spectra 636nm Peak, Excitation Wavelength Specta 584nm Peak
[more info...]
Price: $99.00


Paramagnetic Black Half Coated PE Spheres 1mm
Product ID: HCMS-XXX-BLK
Solid Microspheres with Partial Black Paramagnetic Coating (Bipolar and Bichromal Particles)
Particle Size ranges between 45micron and 1400micron (1.4mm)
[more info...]
Price: $495.00


Fluorescent Green Coating on Paramagnetic Black Core 50um
Product ID: HCMS-BLK-FMG
Solid Black Paramagnetic Polyethylene Microspheres with Partial Fluorescent Green Coating
Particle Size ranges between 45micron and 1.2mm, Specify at time of order
[more info...]
Price: $495.00


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 - Density of 1.00g/cc
[more info...]
Price: $148.50-$248.50


Fluorescent yellow spheres. Neutrally-buoyant microspheres for flow visualization.
Product ID: UVPMS-BY-1.00
Bright Yellow Polyethylene Microspheres 1.00g/cc - Various Sizes Between 500micron and 0.85mm
Neutrally-buoyant spheres for flow visualization.
[more info...]
Price: FREE


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


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


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


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


"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


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 110micron.
>80% in particle size range and >85% spherical particles.
[more info...]
Price: $99.00-$148.50


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 106micron.
>90% in particle size range and >85% spherical particles.
[more info...]
Price: $99.00-$174.50


Fluorescent Green Polyethylene Microspheres<br>Density 1.00g/cc for Flow Visualization and PIV
Product ID: UVPMS-BG-1.00
Fluorescent Green Polyethylene Microspheres Density of 1.00g/cc
Spherical Flourescent Particles for Flow Visualization and PIV
[more info...]
Price: $99.00-$248.50


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


Fluorescent Red Polyethylene Microspheres<br>Density 0.995g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Product ID: UVPMS-BR-0.995
Fluorescent Red Polyethylene Microspheres Density 0.995g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $99.00-$248.50


Fluorescent Red Polyethylene Microspheres Density 1.20g/cc Bright Fluorescent Red Particles 605nm Peak
Product ID: UVPMS-BR-1.20
Fluorescent Red Polyethylene Microspheres 1.20g/cc - Various Sizes 10um to 600um (0.6mm) [more info...]
Price: $99.00-$248.50


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 Yellow Microspheres Density 1.00g/cc for Flow Visualization and PIV<br>Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
Product ID: UVPMS-BY2-1.00
Fluorescent Yellow Microspheres Density 1.00g/cc for Flow Visualization and PIV
Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
[more info...]
Price: $99.00-$248.50


Grey Polyethylene Microspheres Density 1.02g/cc<br>Spherical Opaque Grey Particles for Flow Visualization and PIV
Product ID: GRYPMS
Grey Polyethylene Microspheres
Density 1.00g/cc, 1.02g/cc, 1.05g/cc
Sizes: 20um-1180um (1.2mm)
[more info...]
Price: $99.00-$197.50


Grey Polyethylene Microspheres Density 1.00g/cc<br>Spherical Opaque Grey Particles for Flow Visualization and PIV
Product ID: GRYPMS-1.00
Grey Polyethylene Microspheres Density 1.00g/cc
Spherical Opaque Grey Particles for Flow Visualization and PIV
[more info...]
Price: $99.00-$197.50


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


Monodisperse Silica Microspheres - Spherical Silica Beads
Product ID: SiO2MS-1.8
Monodisperse Silica Microspheres 1.8g/cc CV<10%. Spherical silica beads.
d50=250nm, 500nm, 750nm, 1um, 2um, 4um or 8um.
[more info...]
Price: $148.50


Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Opaque Polymer Particles for Flow Visualization and PIV
Product ID: ORGPMS-1.00
Orange Polyethylene Microspheres Density 1.00g/cc
Spherical Opaque Polymer Particles for Flow Visualization and PIV
[more info...]
Price: $99.00-$197.50


5.9mm Polymer Spheres, Phosphorescent
Product ID: PHPS-1.04
Phosphorescent Polymer Spheres 5.9mm - 1.04g/cc 50 spheres [more info...]
Price: $50.00


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


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


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


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-$279.50


300 Series Stainless Steel Microspheres
Product ID: SSMMS-7.8
Solid 304 Stainless Steel Metal microspheres supplied in dry powder form
>90% in particle size range. Sizes from 1um to 1.2mm
[more info...]
Price: $99.00-$248.50


Titanium Dioxide (TiO2) Coated Hollow Glass Microspheres - Photocatalytic and Seeding Particles
Product ID: TiO2-Coated
Titanium Dioxide (TiO2) Coated Hollow Glass Microspheres
Isospheres (rutile TiO2) and Photospheres (photocatalytic anatase TiO2)
[more info...]
Price: $99.00-$832.50


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


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


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


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Products 1-50 of 76