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Cospheric Microspheres - Precision Spherical Particles Globally

PRECISION SPHERICAL PARTICLES GLOBALLY
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Yellow Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Yellow Particles for Flow Visualization and PIV
Yellow Polyethylene Microspheres Density 1.00g/cc
Spherical Bright Yellow Particles for Flow Visualization and PIV
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Yellow Polyethylene Microspheres 1.00g/cc - 10um to 500um (0.5mm) - Strong Negative Charge

Product Line: YPMS

Bright yellow polymer microparticles of high sphericity and tightly defined particle size distribution are used in industrial and scientific applications for process control, diagnostics, and medical device technology. These spherical polyethylene beads are specifically designed with density ~1g/cc for suspension in fresh water, enabling flow visualization and PIV analysis of fluid flow in a device. It is often advantageous to color code the particles by size to better understand which part of the process the spheres of the specific size were able to pass through, or where the contamination in the process is coming from.

Other colors, sizes and grades of polyethylene spherical particles are available:
Polyethylene Microspheres (Colors, Fluorescent, Phosphorescent, Barium Sulfate)

Other neutrally buoyant particles for flow visualization and PIV are available:
Microspheres for Flow Visualization and PIV (1.0g/cc)

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

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.

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.

Select Particle Size and Density:
Item # Description/Size Status Price Qty
YPMS-1.00 5-20um - 0.1g
Yellow Polyethylene Microspheres 1.00g/cc 5-20um - 0.1g
 In Stock $575.43
YPMS-1.00 10-45m - 1g
Yellow Polyethylene Microspheres 1.00g/cc 10-45um - 1g
 In Stock $275.85
YPMS-1.00 20-27um - 0.5g
Yellow Polyethylene Microspheres 1.00g/cc 20-27um - 0.5g
 In Stock $382.98
YPMS-1.00 27-32um - 0.5g
Yellow Polyethylene Microspheres 1.00g/cc 27-32um - 0.5g
 In Stock $275.85
YPMS-1.00 32-38um - 0.5g
Yellow Polyethylene Microspheres 1.00g/cc 32-38um - 0.5g
 In Stock $275.85
YPMS-1.00 38-45um - 0.5g
Yellow Polyethylene Microspheres 1.00g/cc 38-45um - 0.5g
 In Stock $275.85
YPMS-1.00 27-45um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 27-45um - 1g
 In Stock $275.85
YPMS-1.00 45-53um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 45-53um - 1g
 In Stock $275.85
YPMS-1.00 53-63um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 53-63um - 1g
 In Stock $275.85
YPMS-1.00 63-75um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 63-75um - 1g
 In Stock $235.11
YPMS-1.00 75-90um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 75-90um - 1g
 In Stock $235.11
YPMS-1.00 90-106um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 90-106um - 1g
 In Stock $235.11
YPMS-1.00 106-125um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 106-125um - 1g
 In Stock $201.43
YPMS-1.00 125-150um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 125-150um - 1g
 In Stock $201.43
YPMS-1.00 150-180um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 150-180um - 1g
 In Stock $201.43
YPMS-1.00 180-212um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 180-212um - 1g
 In Stock $201.43
YPMS-1.00 212-250um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 212-250um - 1g
 In Stock $168.40
YPMS-1.00 250-300um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 250-300um - 1g
 In Stock $168.40
YPMS-1.00 300-355um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 300-355um - 1g
 In Stock $168.40
YPMS-1.00 355-425um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 355-425um - 1g
 In Stock $168.40
YPMS-1.00 425-500um - 1g
Yellow Polyethylene Microspheres 1.00g/cc 425-500um - 1g
 In Stock $168.40
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Questions:
We are interested in this product: YPMS-1.00 5-20um - 0.1g Yellow Polyethylene Microspheres 1.00g/cc 5-20um - 0.1g because we want to model sperm, which are negatively charged and up to 5 micron head size. So these neutral buoyancy spheres would seem to be very good for this application, except the size range is from 5 to 20 um. Would you be able to provide these spheres in a size range of around 4-5 micron? Alternatively, do you have a product that is neutrally-buoyant, with a negative charge and 5 micron size?
Answers:
The YPMS product line has the strongest negative charge of our products and has the best 1.00g/cc neutral buoyancy. Unfortunately the 5-20um size range is the smallest we offer. There will be very few 5um particles in this size range as it is the particles are distributed across the range, and it is the smallest size produced.
Cospheric Team July 28, 2020 1:59 PM