Blue polymer spheres with specific gravity of 1.00g/cc are designed to match the density of water for optimal suspension of particles, enabling visualization and characterization of fluid flow for process modeling, optimization, and testing the capability of devices to withstand particulate matter in the fluid stream of the aqueous solution.

It is critical that the density of polymer spheres is matched as close as possible to the density of water at the correct temperature. If there is a mismatch in density, the microspheres will either sink or float. Please reference our table for Density of Water as a Function of Temperature.

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.

Density: 0.99g/cc-1.01g/cc (perfect for suspension in water)
Particles in Size Range: >90%
Spherical Particles: >90%

Microspheres are supplied in dry powder form and are color stable in solution. No solvents are used in the manufacturing process. Polyethylene is inert to most solvents.