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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.


Products 1-56 of 58
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Black Paramagnetic Polyethylene Microspheres 10um to 1mm in Diameter. Paramagnetic microspheres have the ability to increase their magnetization with an applied magnetic field and decrease their magnetism when the field is removed.
Item #: BKPMS -
Price: $103.95-$372.75
Item #: BKPMS - View

Paramagnetic microspheres have the ability to increase their magnetization with an applied magnetic field and decrease their magnetism when the field is removed. No residual magnetization is... [more info...]

Janus Particles - Black Paramagnetic Microsphere Core with Partial White Coating (Bipolar and Bichromal Particles)
Item #: HCMS-Polymer -
Price: $295.00-$495.00
Item #: HCMS-Polymer - View

Janus particles are microspheres with dual-functionality. We specialize in creating hemispherical coatings on microspheres of any material with diameters greater than 45micron. Custom colors, cores,... [more info...]

Monodisperse Silica Microspheres - Spherical Silica Beads
Item #: SiO2MS -
Price: $157.50-$258.50
Item #: SiO2MS - View

Silica spheres are manufactured using proprietary technologies which allow the essential properties of amorphous silica to be maintained while simultaneously achieving controlled spherical shape and... [more info...]

Spacer Spheres - Monodisperse Solid Soda Lime Microspheres - Calibration Grade
Item #: S-SLGMS -
Price: $131.25-$312.50
Item #: S-SLGMS - View

Bondline spacer grade solid soda lime glass microspheres are available with tight particle size ranges to achieve bondline thickness (gap) from 15um to 219micron. Bondline spacers are supplied as a... [more info...]

UVPMS-BG Fluorescent Spectra (Excitation & Emission curves)
Item #: UVPMS-BG-1.025 -
Price: $103.95-$298.50
Item #: UVPMS-BG-1.025 - View
Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.015g/cc
Item #: UVPMS-BG-1.015 -
Price: $103.95
Item #: UVPMS-BG-1.015 - View

Density: 1.01-1.02g/cc Daylight Color: Fluorescent Green (515nm Peak) Fluorescent Response: Peak emission of 515nm when excited at 414nm Particles in Size Range: > 90% Spherical Particles: >... [more info...]

Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.01g/cc
Item #: UVPMS-BG-1.01 -
Price: $103.95-$215.00
Item #: UVPMS-BG-1.01 - View

Density: 1.00-1.02g/cc Daylight Color: Fluorescent Green (515nm Peak) Fluorescent Response: Peak emission of 515nm when excited at 414nm Particles in Size Range: > 90% Spherical Particles: >... [more info...]

Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.02g/cc
Item #: UVPMS-BG-1.02 -
Price: $103.95
Item #: UVPMS-BG-1.02 - View

Density: 1.015-1.025g/cc Daylight Color: Fluorescent Green (505nm Peak) Fluorescent Response: Peak emission of 515nm when excited at 414nm Particles in Size Range: > 90% Spherical Particles: >... [more info...]

Fluorescent Green Polyethylene Microspheres Density 1.035g/cc<br>Bright Green Polymer Spherical Microbeads
Item #: UVPMS-BG-1.035 -
Price: $103.95-$215.00
Item #: UVPMS-BG-1.035 - View

Density: 1.03-1.04g/cc Daylight Color: Fluorescent Green (515nm Peak) Fluorescent Response: Peak emission of 515nm when excited at 414nm Particles in Size Range: >90% Spherical Particles: >90%... [more info...]

Fluorescent Red Polyethylene Microspheres Density 0.99g/cc Bright Fluorescent Red Particles 605nm Peak
Item #: UVPMS-BR-0.995 -
Price: $103.95-$372.75
Item #: UVPMS-BR-0.995 - View

Density: 0.985g/cc - 1.005g/cc (Designed for Water Suspension)Daylight Color: Fluorescent Red (607nm Peak) Fluorescent Response: Fluorescent Red under 300-550nm wavelengths. Works well with Green... [more info...]

Fluorescent Red Polyethylene Microspheres Density 1.20g/cc Bright Fluorescent Red Particles 605nm Peak
Item #: UVPMS-BR-1.20 -
Price: $103.95-$215.00
Item #: UVPMS-BR-1.20 - View
Fluorescent Red Polyethylene Microspheres Density 1.090g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Item #: UVPMS-BR-1.090 -
Price: $103.95-$215.00
Item #: UVPMS-BR-1.090 - View
Fluorescent Red Polyethylene Microspheres Density 1.050g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Item #: UVPMS-BR-1.050 -
Price: $103.95-$215.00
Item #: UVPMS-BR-1.050 - View
300 Series Stainless Steel Microspheres
Item #: SSMMS -
Price: $103.95-$261.00
Item #: SSMMS - View

Particles in Size Range: >90% Sphericity: >90% Density: 7.7-7.9g/cc Vickers Hardness: ~200HV [more info...]

Fluorescent Yellow Microspheres Density 1.00g/cc for Flow Visualization and PIV<br>Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
Item #: UVPMS-BY2-1.00 -
Price: $103.95-$372.75
Item #: UVPMS-BY2-1.00 - View
Fluorescent Yellow Microspheres Density 1.02g/cc for Flow Visualization and PIV<br>Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
Item #: UVPMS-BY2-1.02 -
Price: $215.00
Item #: UVPMS-BY2-1.02 - View
Retroreflective Half-Shell Aluminum Coated Solid Glass Microspheres
Item #: P2453BTA -
Price: $103.95-$557.00
Item #: P2453BTA - View

The spheres are offered in dry powder form with the following coating options: Uncoated - no surface treatment Silane Coating (S2) - for improved dispersion in aqueous systems (~76 degree contact... [more info...]

Fluorescent Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Orange MicroBead Polymer Particles for Flow Visualization and PIV
Item #: UVPMS-BO-1.00 -
Price: $103.95-$215.00
Item #: UVPMS-BO-1.00 - View
Fluorescent Orange Polyethylene Microspheres Density 1.015g/cc<br>Bright Orange Polymer Spherical MicroBeads
Item #: UVPMS-BO-1.015 -
Price: $103.95-$215.00
Item #: UVPMS-BO-1.015 - View
Fluorescent Orange Polyethylene Microspheres Density 1.030g/cc<br>Spherical Polymer Particles Fluorescent in UV Light
Item #: UVPMS-BO-1.03 -
Price: $103.95-$215.00
Item #: UVPMS-BO-1.03 - View
Blue Polyethylene Microspheres Density of 1.00g/cc <br>Spherical Particles for Flow Visualization and PIV
Item #: BLPMS-1.00 -
Price: $103.95-$372.75
Item #: BLPMS-1.00 - View
Barium Titanate Solid Glass Microspheres and Spheres
Item #: BTGMS -
Price: $52.50-$895.00
Item #: BTGMS - View

Barium Titanate glass spheres offer a higher Refractive Index (n) than most other glass formulations. Depending on the grade of material, reflecting index of Barium Titanate glass is between 1.9 to... [more info...]

Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Opaque Polymer Particles for Flow Visualization and PIV
Item #: ORGPMS-1.00 -
Price: $103.95-$215.00
Item #: ORGPMS-1.00 - View
Conductive Silver Coated Poly(Methyl Methacrylate) Acrylic Microspheres
Item #: PMMA-AG -
Price: $99.00-$348.50
Item #: PMMA-AG - View

Sphericity varies by Product Code: PMMAMS-AG: These are highly spherical particles. Greater than 95% of particles are spherical. PMPMS-AG: Also highly spherical grade, with occasional minor... [more info...]

Red Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron
Item #: FMR -
Price: $103.95
Item #: FMR - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Fluorescent Polymer Spheres (Green) 1.100g/cc density
Item #: UVPMS-BG-1.100 -
Price: $215.00-$447.75
Item #: UVPMS-BG-1.100 - View
Green Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Item #: FMG -
Price: $103.95
Item #: FMG - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Fluorescent Violet Polyethylene Microspheres<br>Density 1.00g/cc for Flow Visualization and PIV
Item #: UVPMS-BV-1.00 -
Price: $157.00-$372.75
Item #: UVPMS-BV-1.00 - View
Fluorescent Violet Polyethylene Microspheres<br>Density 1.06g/cc
Item #: UVPMS-BV-1.06 -
Price: $103.95-$131.25
Item #: UVPMS-BV-1.06 - View
Conductive Silver-Coated Glass Microspheres, Beads, Particles
Item #: SLGMS-AG -
Price: $103.95-$261.00
Item #: SLGMS-AG - View

Also see: Other Conductive Spheres: Conductive Silver Metal Coated Microspheres Other Soda Lime Spheres: Solid Soda Lime Glass Spheres and Microspheres ... [more info...]

Conductive Silver Metal Coated Hollow Glass Microspheres
Item #: HGMS-AG -
Price: $103.95-$1,555.05
Item #: HGMS-AG - View

Conductive hollow glass microspheres have low particle densities and so provide a significant weight reduction when used in place of conventional conductive fillers such as solid silver particles. A... [more info...]

Blue Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Item #: FMB -
Price: $103.95
Item #: FMB - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Orange-Yellow Fluorescent Microspheres 1-5micron (um) - Emission Wavelength Spectra 594nm Peak, Excitation Wavelength Specta 460nm Peak
Item #: FMOY -
Price: $103.95
Item #: FMOY - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Yellow Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter
Item #: FMY -
Price: $103.95
Item #: FMY - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Orange Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Item #: FMO -
Price: $103.95
Item #: FMO - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Violet Fluorescent Microspheres 1-5micron (um) - Emission Wavelength 636nm Peak, Excitation 584nm Peak
Item #: FMV -
Price: $103.95
Item #: FMV - View

Product Features and Benefits: Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or plateout is desired.Highly Solvent... [more info...]

Blue Fluorescent Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 100X magnification
Item #: HCMS-FMB -
Price: $295.00-$495.00
Item #: HCMS-FMB - View

Produced under Pat. 8,501,272 [more info...]

Green Fluorescent  Hemispherical Coating on Solid Glass Microspheres 45-53 micron - 100X magnification
Item #: HCMS-FMG -
Price: $295.00-$600.00
Item #: HCMS-FMG - View

Produced under Pat. 8,501,272 [more info...]

Red Fluorescent Hemispherical Coating on Solid Glass Microspheres
Item #: HCMS-FMR -
Price: $495.00-$550.00
Item #: HCMS-FMR - View

Produced under Pat. 8,501,272 [more info...]

Violet Fluorescent-Coated Glass Microspheres - Various sizes and densities fluorescent Violet glass, fluorescent Violet glass spheres, microspheres, particles, microparticles, beads, UV
Item #: HCMS-FMV -
Price: $495.00
Item #: HCMS-FMV - View

Produced under Pat. 8,501,272 [more info...]

Black Paramagnetic Coated Glass Microspheres - Various sizes and densities Black Paramagnetic glass, glass spheres, microspheres, particles, microparticles, beads
Item #: HCMS-BLK -
Price: $495.00-$595.00
Item #: HCMS-BLK - View

Produced under Pat. 8,501,272 [more info...]