Fluorescent Tracer Microspheres are round spherical particles that emit bright colors which are broad spectrum excitable (300nm thru emission color). The ability to emit intense color under UV (black light) illumination provides contrast and visibility of microspheres relative to background materials. These dry fluorescent microspheres are ideal tracer particles for air, water or solvent dispersal. The small size, bright colors, low toxicity, and solvent resistance allow suitability for studying of powder dispersal, toxin ingestion, and as micro-fluidic tracers.

FM-series fluorescent microspheres have the following properties:

  • Dry powder 1-5 um diameter (~2 micron mean)
  • Thermoset amino formaldehyde polymer
  • Density of 1.3g/cc (1.3g/ml)
  • Hydrophilic - no surfactant required.
  • Solvent resistant to most solvents
  • High temperature capable, up to 225ºC
  • Non-toxic
  • Multiple colors for combined variable testing.

Solvent and Bleed resistance of FM Series:

SOLVENT SOLUBILITY BLEED
Water Insoluble Negligible
Mineral Spirits Insoluble Negligible
Toluene Insoluble Negligible
Xylene Insoluble Negligible
Ethanol Insoluble Negligible
Methanol Insoluble Considerable
2-Propanol Insoluble Moderate
Acetone Insoluble Considerable
Methyl Ethyl Ketone (MEK) Insoluble Considerable
Ethyl Acetate Insoluble Slight to Moderate

Products 1-12 of 12
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Orange-Red Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron
Item #: FMOR -
Price: $103.95
Item #: FMOR - 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...]

Thermoset polymer pink fluorescent microspheres 1 to 5 micron in diameter.
Item #: FMPK -
Price: $103.95
Item #: FMPK - 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...]

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

Green Luminescent, Ultraviolet Fluorescing Polymer Microspheres 1 - 5micron in diameter.
Item #: FMG -
Price: $103.95
Item #: FMG - 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...]

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...]