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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
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


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-$297.50


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 Green Polyethylene Microspheres<br>Bright Green Polymer Microbeads Density 1.025g/cc
Product ID: UVPMS-BG-1.025
Fluorescent Green Polyethylene Microspheres with Density 1.025g/cc
Bright Green Polymer MicroBeads
[more info...]
Price: $99.00-$248.50


Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.015g/cc
Product ID: UVPMS-BG-1.015
Fluorescent Green Polyethylene Microspheres Density 1.015g/cc
Bright Green Polymer Beads Diameter 355micron to 500um (0.5mm)
[more info...]
Price: $99.00


Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.01g/cc
Product ID: UVPMS-BG-1.01
Fluorescent Green Polyethylene Microspheres Density 1.01g/cc
Bright Green Polymer Spheres Diameter 27micron to 425um
[more info...]
Price: $99.00-$197.50


Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.02g/cc
Product ID: UVPMS-BG-1.02
Fluorescent Green Polyethylene Microspheres Density 1.02g/cc
Bright Green Polymer Spheres or Beads
[more info...]
Price: $99.00-$112.50


Fluorescent Green Polyethylene Microspheres Density 1.035g/cc<br>Bright Green Polymer Spherical Microbeads
Product ID: UVPMS-BG-1.035
Fluorescent Green Polyethylene Microspheres Density 1.035g/cc
Bright Green Polymer Spherical Microbeads
[more info...]
Price: $99.00-$197.50


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 Red Polyethylene Microspheres Density 1.090g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Product ID: UVPMS-BR-1.090
Fluorescent Red Polyethylene Microspheres Density 1.090g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $99.00-$248.50


Fluorescent Red Polyethylene Microspheres Density 1.050g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Product ID: UVPMS-BR-1.050
Fluorescent Red Polyethylene Microspheres Density 1.050g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $99.00-$197.50


Fluorescent Red Polyethylene Microspheres Density 1.070g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Product ID: UVPMS-BR-1.070
Fluorescent Red Polyethylene Microspheres Density 1.070g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $248.50


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


Black Paramagnetic Polyethylene Microspheres 10um to 1mm in Diameter<br>Polymer Spherical MicroBeads can be Manipulated with a Magnet
Product ID: BKPMS
Black Paramagnetic Polyethylene Microspheres, Density of 1.1g/cc and 1.2g/cc 10um to 1400um (1.4mm) in Diameter
Polymer Spherical MicroBeads can be Manipulated with a Magnet
[more info...]
Price: $99.00-$248.50


300 Series Stainless Steel Microspheres
Product ID: SSMMS
Solid 304 Stainless Steel Metal microspheres supplied in dry powder form
>90% in particle size range. Sizes from 1um to 1200um (1.2mm)
[more info...]
Price: $99.00-$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


Fluorescent Yellow Microspheres Density 1.02g/cc for Flow Visualization and PIV<br>Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
Product ID: UVPMS-BY2-1.02
Fluorescent Yellow Microspheres Density 1.02g/cc for Flow Visualization
Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
[more info...]
Price: $148.50-$197.50


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


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 Orange Polyethylene Microspheres Density 1.015g/cc<br>Bright Orange Polymer Spherical MicroBeads
Product ID: UVPMS-BO-1.015
Fluorescent Orange Polyethylene Microspheres Density 1.015g/cc
Bright Orange Polymer Spherical MicroBeads
[more info...]
Price: $99.00-$197.50


Fluorescent Orange Polyethylene Microspheres Density 1.030g/cc<br>Spherical Polymer Particles Fluorescent in UV Light
Product ID: UVPMS-BO-1.03
Fluorescent Orange Polyethylene Microspheres Density 1.03g/cc
Spherical Polymer Particles Fluorescent in UV Light
[more info...]
Price: $99.00-$197.50


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


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 (1.0mm) Index of Refraction: ~1.9 [more info...]
Price: $99.00-$248.50


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 - 4.0-4.5g/cc - Sizes: 30-100um and 0.3-1000um (1.0mm) - Index of Refraction: 1.9 [more info...]
Price: $50.00-$158.00


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-$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-1200um (1.2mm)
[more info...]
Price: $99.00-$248.50


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-$248.50


Fluorescent Blue Polyethylene Polymer Microspheres, Particles, Beads<br>Density 1.13g/cc
Product ID: UVPMS-BB-1.13
Fluorescent Blue Polyethylene Polymer Microspheres - Density 1.13g/cc
Bright Blue UV Fluorescent Polymer Particles, Beads, Spheres
[more info...]
Price: $99.00-$248.50


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 500 and 750micron
[more info...]
Price: $297.50-$348.50


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


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


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


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


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


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 (0.6mm)
Index of Refraction: >1.93
[more info...]
Price: $125.00-$184.50


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


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<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 106micron.
>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 110micron.
>80% in particle size range and >85% spherical particles.
[more info...]
Price: $99.00-$148.50


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


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


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


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


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