On the morning of 11/6/2024 our area was struck by a devastating wildfire (Mountain Fire).
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Rhodamine B polyethylene microspheres appear pink in the daylight and are supplied in dry powder form. Rhodamine B particles of smaller sizes (<~100um) show a weak orange fluorescent responses, with 10-27um being the weakest. Larger Particles have a slightly better fluorescent response.
Other colors, sizes and grades of fluorescent particles are available:Fluorescent Polymer Particles, Beads, Microspheres
Density: 0.98g/cc Daylight Color: Pink Illumination Color: Weak Orange response (Peak ~595nm) Particles in Size Range: >90% Spherical Particles: >90%Note: 710-850um size is >75% spherical particles
Polyethylene microspheres are hydrophobic and suspend easily in oil-based solutions. They can also be suspended in aqueous solution if coated with a surfactant prior to suspending in water. We recommend using Tween 80 or Tween 20 Surfactants.
Pink Cellulose Acetate Polymer Spheres - Large Plastic Beads ~1.3g/cc - 2.9mm
Price: $67.36
Pink Polyethylene Microspheres 1.00g/cc - 10um to 1000um (1.0mm)
Price: $133.37-$275.85
Fluorescent Blue Polyethylene Microspheres 1.12-1.14g/cc - 27um to 710um