Density: 1.01-1.02g/cc
Daylight Color: Fluorescent Green (515nm Peak)
Fluorescent Response: Peak emission of 515nm when excited at 414nm

Microspheres vs Micropellets vs Microparticles:

Microspheres: >90% of particles are spheres
Micropellets: >90% of particles are spheroids (sphere-like but not perfectly spherical body)
Microparticles: >90% of particles may have irregular shapes

Polyethylene microspheres, micropellets, and microparticles 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.

Material Safety Data Sheet - Polyethylene Spheres, Beads, Microspheres, and Nanospheres