Cospheric offers an exclusive product line of brightly-colored polyethylene microspheres. Cospheric's polyethylene micropheres range in size from 10micron to 1000micron (1 millimeter) and in some cases up to 1.2mm. The uniqueness of our product is that the colorant is bright, fully embedded into the microsphere, uniformly distributed, and will not fade over time or leach out of the particle into the solution. The colored microspheres are conveniently provided in a glass vial or a glass jar as a free-flowing dry powder, which does not have an expiration date and can be safely stored at room temperature indefinitely.

Currently we have a large stock of sizes in clear (uncolored polyethylene), white, red, blue, green, black (paramagnetic), yellow, red, violet, pink, orange, and grey microspheres. This is one of our core product lines and we welcome requests for custom colors and/or custom densities between 0.98g/cc and 1.2g/cc, which are often used for medical technology applications. Browse a large selection of microsphere products on-line or contact a microsphere expert for a recommendation or a custom quote. Place an order on-line 24/7. We ship microspheres worldwide on a daily basis!


Products 57-102 of 102
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Barium Sulfate White Polyethylene Polymer Microspheres - Particles for MRI or X-Ray Medical Applications - Density of 1.5g/cc
Item #: BSPMS -
Price: $157.00-$261.00
Item #: BSPMS - View

White barium sulfate polyethylene microspheres are supplied in dry powder form and are stable in solution. Polyethylene microspheres are hydrophobic and suspend easily in oil-based solutions.... [more info...]

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...]

Precision Polished Soda Lime Glass Spheres - Calibration Glass Spheres - Reference Polished Glass Particles
Item #: P-SLGS -
Price: $47.25-$495.00
Item #: P-SLGS - View

Diameter Tolerance: ±20um Roundness/Sphericity: ≤20um; >99% (Ratio of Width/Length) Density: 2.5g/cc+/-0.1g/cc Index of Refraction: 1.5284 Softening Temperature: 718°C Melting Point: 1445°C... [more info...]

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

Product Features and Benefits: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [more info...]

Reddish-Pink Fluorescent Microspheres 1-5micron (um) - Emission Wavelength Spectra 609nm Peak
Item #: FMCE -
Price: $103.95
Item #: FMCE - View

Product Features and Benefits: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [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: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [more info...]

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

Product Features and Benefits: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [more info...]

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

Product Features and Benefits: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [more info...]

Fluorescent White Microspheres 1-5micron (um) - Broad spectrum fluorescence
Item #: FMCL -
Price: $103.95
Item #: FMCL - View

Product Features and Benefits: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [more info...]

Magenta (Red-Purple) Fluorescent Microspheres 1-5micron (um) - Emission Wavelength 613nm Peak, Excitation 575nm Peak
Item #: FMMG -
Price: $103.95
Item #: FMMG - View

Product Features and Benefits: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [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: Thermoset amino formaldehyde polymer. Inert fluorescent polymer, highly cross-linked for use in applications where the avoidance of swelling, bleeding, migration or... [more info...]