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Home > Spherical Particles > By Material > Polymer Spheres and Microspheres > Polyethylene Microspheres (PE)

Polyethylene Microspheres (PE)

Cospheric LLC specializes in a large selection of polyethylene microspheres in particle size from 1um to 1.7mm. High quality solid polyethylene microspheres are now commercially available not only in a wide variety of colors, but also with opaque, paramagnetic, fluorescent, and phosphorescent properties. Some polyethylene microspheres have a strong triboelectric (electrostatic) charge. Black microspheres can be manufactured with paramagnetic or static-dissipative properties.

Microspheres in any color can be made neutrally buoyant in water with specific gravity of 1.00g/cc. The density can be adjusted to create microspheres neutrally buoyant in other media. A wide variety of PE microparticles with custom specific gravity from 0.96g/cc to 1.3g/cc, allowing researchers to match the density of the spheres to that of the surrounding fluid for PIV and fluid flow visualization experiments, as well as density marker beads applications. Most of the grades of polyethylene microspheres meet the specification of >90% in particle size range and >90% spherical particles. PE Polymer beads are generally hydrophobic and have high protein binding abilities. However, they often require the use of a surfactant to ensure ease of handling and suspension in aqueous solutions. Custom color and density polyethylene microspheres can be manufactured by request.

Size and Form: Solid polymer spheres in dry powder form. Refer to sizes for USA standard sieves (ASTM E11) for ranges of particle sizes. Sphericity: Polyethylene spheres are screened to prevent any dust, debris, and non-spherical microparticles. High quality identical polymer spheres with excellent uniformity. Opacity: Clear microspheres are translucent pure polyethylene. Opaque microspheres are truly opaque (will not transmit light even in a 50um monolayer).

See link for research articles involving our polyethylene spheres.

CATEGORIES
Clear (translucent) or opaque white polyethylene microspheres for applications that require no color or fluorescent response. Dry powder, spherical, hydrophobic particles.
Microspheres in ten unique colors to enable color-coding for contamination and calibration studies. Cospheric specializes in developing and manufacturing polyethylene microspheres to customer's specific color requirements.
Fluorescent polyethylene microspheres in nine unique formulations emit bright colors at various wavelength and become highly visible when illuminated by UV light. Highly valuable in process diagnostics and troubleshooting, process flow, medical research and other industries.
Barium sulfate polymer microspheres are opaque to X-ray and other imaging techniques. Barium sulfate contrast material is embedded into the polyethylene microspheres and acts as a radiocontrast agent for diagnostic procedures.
Black paramagnetic microspheres in dry powder form have enabled scientists to leverage the benefits of paramagnetic particles in new applications. Flowability and visibility of larger microspheres, with the ability to be separated from other materials for reuse and cleanup.
Janus particles are bichromal and bipolar. Polyethylene core spheres of specific size range are hemispherically coated with a material of different color to achieve a half-shell effect, especially suitable for applications where observation of rotation and translation of particles is needed.
Phosphorescent particles are used for process study and blind tests especially in medical technology industry, diagnostics, troubleshooting, process flow, medical research and other industries. Particles exhibit a strong long-afterglow phosphorescent response and are stable in solution.

Show
Products 1-47 of 47
Clear Polyethylene Microspheres 0.96g/cc - Various Sizes 100micron to 1700micron (1.7mm)
Product Line: CPMS
Clear Polyethylene Microspheres 0.96g/cc - Various Sizes 1micron to 1um to 1700um (1.7mm)
>90% in particle size range and >90% spherical.
[more info...]
Price: $103.95-$372.75


Highly Opaque White Polyethylene Microspheres, Polymer Beads, Particles
Product Line: WPMS
Highly Opaque White Polyethylene Microspheres, Polymer Beads, Particles
Various Sizes 10micron to 1200um (1.2mm) in Diameter
[more info...]
Price: $103.95-$372.75


Black Paramagnetic Polyethylene Microspheres 10um to 1mm in Diameter<br>Paramagnetic microspheres have the ability to increase their magnetization with an applied magnetic field and decrease their magnetism when the field is removed.
Product Line: BKPMS
Paramagnetic microspheres have the ability to increase their magnetization with an applied magnetic field
and decrease their magnetism when the field is removed.
[more info...]
Price: $103.95-$372.75


Solid Black Paramagnetic Polyethylene Microspheres with Partial White Coating (Bipolar and Bichromal Particles)
Product Line: HCMS-Polymer
Solid Polymer Microspheres with Half-shell Color Coating (Bipolar and Bichromal Janus Particles)
Particle Size ranges between 45micron and 1400micron (1.4mm)
[more info...]
Price: $295.00-$495.00


Fluorescent Green Polyethylene Microspheres Density 1.00g/cc for Flow Visualization and PIV
Product Line: UVPMS-BG-1.00
Fluorescent Green Polyethylene Microspheres Density of 1.00g/cc
Spherical Flourescent Particles for Flow Visualization and PIV
[more info...]
Price: $103.95-$298.50


UVPMS-BG Fluorescent Spectra (Excitation & Emission curves)
Product Line: UVPMS-BG-1.025
Fluorescent Green Polyethylene Microspheres with Density 1.025g/cc
Bright Green Polymer MicroBeads
[more info...]
Price: $103.95-$298.50


Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.015g/cc
Product Line: UVPMS-BG-1.015
Fluorescent Green Polyethylene Microspheres Density 1.015g/cc
Bright Green Polymer Beads Diameter 355micron to 500um (0.5mm)
[more info...]
Price: $103.95


Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.01g/cc
Product Line: UVPMS-BG-1.01
Fluorescent Green Polyethylene Microspheres Density 1.01g/cc
Bright Green Polymer Spheres Diameter 27micron to 425um
[more info...]
Price: $103.95-$215.00


Fluorescent Green Polyethylene Microspheres<br>Bright Green Polymer Beads Density 1.02g/cc
Product Line: UVPMS-BG-1.02
Fluorescent Green Polyethylene Microspheres Density 1.02g/cc
Bright Green Polymer Spheres or Beads
[more info...]
Price: $103.95


Fluorescent Green Polyethylene Microspheres Density 1.035g/cc<br>Bright Green Polymer Spherical Microbeads
Product Line: UVPMS-BG-1.035
Fluorescent Green Polyethylene Microspheres Density 1.035g/cc
Bright Green Polymer Spherical Microbeads
[more info...]
Price: $103.95-$215.00


Fluorescent Red Polyethylene Microspheres Density 0.99g/cc Bright Fluorescent Red Particles 605nm Peak
Product Line: UVPMS-BR-0.995
Fluorescent Red Polyethylene Microspheres Density 0.995g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $103.95-$372.75


Fluorescent Red Polyethylene Microspheres Density 1.20g/cc Bright Fluorescent Red Particles 605nm Peak
Product Line: UVPMS-BR-1.20
Fluorescent Red Polyethylene Microspheres 1.20g/cc - Various Sizes 10um to 600um (0.6mm) [more info...]
Price: $103.95-$215.00


Fluorescent Red Polyethylene Microspheres Density 1.090g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Product Line: UVPMS-BR-1.090
Fluorescent Red Polyethylene Microspheres Density 1.090g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $103.95-$215.00


Fluorescent Red Polyethylene Microspheres Density 1.050g/cc<br>Bright Fluorescent Red Particles 605nm Peak.
Product Line: UVPMS-BR-1.050
Fluorescent Red Polyethylene Microspheres Density 1.050g/cc
Bright Fluorescent Red Particles 605nm Peak. Works well with Green Lasers.
[more info...]
Price: $103.95-$215.00


Density Marker Beads for use in Density Gradients
Price: $67.00-$450.00


Fluorescent Yellow Microspheres Density 1.00g/cc for Flow Visualization and PIV<br>Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
Product Line: UVPMS-BY2-1.00
Fluorescent Yellow Microspheres Density 1.00g/cc for Flow Visualization and PIV
Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
[more info...]
Price: $103.95-$372.75


Fluorescent Yellow Microspheres Density 1.02g/cc for Flow Visualization and PIV<br>Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
Product Line: UVPMS-BY2-1.02
Fluorescent Yellow Microspheres Density 1.02g/cc for Flow Visualization
Bright Fluorescent Yellow-Green Particles with UV and Visible Illumination
[more info...]
Price: $215.00


Fluorescent Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Orange MicroBead Polymer Particles for Flow Visualization and PIV
Product Line: UVPMS-BO-1.00
Fluorescent Orange Polyethylene Microspheres Density 1.00g/cc
Spherical Bright Orange MicroBead Polymer Particles for Flow Visualization and PIV
[more info...]
Price: $103.95-$215.00


Fluorescent Orange Polyethylene Microspheres Density 1.015g/cc<br>Bright Orange Polymer Spherical MicroBeads
Product Line: UVPMS-BO-1.015
Fluorescent Orange Polyethylene Microspheres Density 1.015g/cc
Bright Orange Polymer Spherical MicroBeads
[more info...]
Price: $103.95-$215.00


Fluorescent Orange Polyethylene Microspheres Density 1.030g/cc<br>Spherical Polymer Particles Fluorescent in UV Light
Product Line: UVPMS-BO-1.03
Fluorescent Microspheres - Orange Polyethylene - Density 1.03g/cc and 1.04g/cc
Spherical Polymer Particles Fluorescent in UV Light
[more info...]
Price: $103.95-$215.00


Blue Polyethylene Microspheres Density of 1.00g/cc <br>Spherical Particles for Flow Visualization and PIV
Product Line: BLPMS-1.00
Blue Polyethylene Microspheres 1.00g/cc - Density of Water
Neutrally-Buoyant Spherical Blue Particles for Flow Visualization and PIV
[more info...]
Price: $103.95-$372.75


Blue Polyethylene Microspheres Density 1.08g/cc<br>Bright Blue Polymer Spherical MicroBeads
Product Line: BLPMS-1.08
Blue Polyethylene Microspheres 1.08g/cc - Density of White Blood Cells
Bright Blue Polymer Spherical Microbeads for Validating and Troubleshooting Medical Devices
[more info...]
Price: $103.95-$372.75


Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Opaque Polymer Particles for Flow Visualization and PIV
Product Line: ORGPMS
Orange Polyethylene Microspheres
Density: 1.00g/cc, 1.015g/cc
Sizes: 20um to 1200um (1.2mm)
[more info...]
Price: $103.95-$215.00


Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Opaque Polymer Particles for Flow Visualization and PIV
Product Line: ORGPMS-1.00
Orange Polyethylene Microspheres Density 1.00g/cc
Spherical Opaque Polymer Particles for Flow Visualization and PIV
[more info...]
Price: $103.95-$215.00


Orange Polyethylene Microspheres Density 1.00g/cc<br>Spherical Opaque Polymer Particles for Flow Visualization and PIV
Product Line: ORGPMS-1.015
Orange Polyethylene Microspheres Density 1.015g/cc
Spherical Opaque Polymer Particles for Flow Visualization and PIV
[more info...]
Price: $131.25-$215.00


Grey Polyethylene Microspheres Density 1.02g/cc<br>Spherical Opaque Grey Particles for Flow Visualization and PIV
Product Line: GRYPMS
Grey Polyethylene Microspheres Density 1.00g/cc, 1.02g/cc, 1.05g/cc
Applications for process control, diagnostics, pharmaceutical and medical device technology.
[more info...]
Price: $103.95-$372.75


Fluorescent Blue Polyethylene Polymer Microspheres, Particles, Beads<br>Density 1.13g/cc
Product Line: UVPMS-BB-1.13
Fluorescent Blue Polyethylene Polymer Microspheres - Density 1.13g/cc
Bright Blue UV Fluorescent Polymer Particles, Beads, Spheres
[more info...]
Price: $103.95-$215.00


Red Polyethylene Microspheres<br>Bright Red Spherical Polymer Microparticles
Product Line: REDPMS
Red Polyethylene Microspheres
Bright Red Spherical Polymer Microparticles
[more info...]
Price: $103.95


Red Polyethylene Microspheres Density 0.98g/cc<br>Bright Red Spherical Polymer Microparticles
Product Line: REDPMS-0.98
Red Polyethylene Microspheres Density 0.98g/cc
Bright Red Spherical Polymer Microparticles
[more info...]
Price: $103.95-$298.50


Red Polyethylene Microspheres Density 1.070g/cc<br>Bright Red Polymer Spherical Microparticles
Product Line: REDPMS-1.070
Red Polyethylene Microspheres Density 1.070g/cc
Bright Red Polymer Spherical Microparticles
[more info...]
Price: $103.95-$131.25


Red Polyethylene Microspheres Denstiy 1.080g/cc<br>Bright Red Polymer Spherical Microbeads
Product Line: REDPMS-1.080
Red Polyethylene Microspheres Denstiy 1.080g/cc
Bright Red Polymer Spherical Microbeads
[more info...]
Price: $103.95


Red Polyethylene Microspheres Density 1.065g/cc<br>Bright Red Polymer Spherical Microparticles
Product Line: REDPMS-1.065
Red Polyethylene Microspheres Density 1.065g/cc
Bright Red Polymer Spherical Microparticles
[more info...]
Price: $103.95


Red Polyethylene Microspheres Density 1.09g/cc<br>Bright Red Polymer Spherical Microbeads
Product Line: REDPMS-1.09
Red Polyethylene Microspheres Density 1.09g/cc
Bright Red Polymer Spherical Microbeads
[more info...]
Price: $103.95


Pink Polyethylene Microspheres Density 1.00g/cc<br>Pink (Magenta) Polymer Spheres for Flow Visualization and PIV
Product Line: PNKPMS-1.00
Pink Polyethylene Microspheres Density 1.00g/cc
Pink (Magenta) Polymer Spheres for Flow Visualization and PIV
[more info...]
Price: $103.95-$215.00


Fluorescent Polymer Spheres (Green) 1.100g/cc density
Product Line: UVPMS-BG-1.100
Fluorescent green microspheres are designed with density of 1.100g/cc, ideal for simulating pollen dispersion.
Particles exhibit a strong fluorescent response and are color stable in solution.
[more info...]
Price: $215.00-$447.75


Fluorescent Violet Polyethylene Microspheres<br>Density 1.00g/cc for Flow Visualization and PIV
Product Line: UVPMS-BV-1.00
Fluorescent Violet (Purple) Polyethylene Microspheres Density of 1.00g/cc
Spherical Flourescent Particles for Flow Visualization and PIV
[more info...]
Price: $157.00-$372.75


Fluorescent Violet Polyethylene Microspheres<br>Density 1.06g/cc
Product Line: UVPMS-BV-1.06
Fluorescent Violet (Purple) Polyethylene Microspheres Density of 1.06g/cc
Spherical Flourescent Particles
[more info...]
Price: $103.95-$131.25


Barium Sulfate White Polyethylene Polymer Microspheres - Particles for MRI or X-Ray Medical Applications - Density of 1.5g/cc
Product Line: BSPMS-1.5
Barium Sulfate White Polyethylene Polymer Microspheres - MRI or X-Ray Medical Applications - 1.5g/cc [more info...]
Price: $157.00-$261.00


UV Fluorescent Microspheres Density 0.98g/cc - Clear (Translucent) in Daylight, Brilliant Yellow-Green with UV illumination (365nm)
Product Line: UVYGPMS
UV Fluorescent Microspheres Density 0.97g/cc
Clear (Translucent) in Daylight, Brilliant Yellow-Green with UV illumination (365nm)
[more info...]
Price: $103.95-$372.75


Clear Polyethylene Particles 0.96g/cc - Various Sizes 0.6mm - 2.8mm
Product Line: CPB-0.96
Clear Polyethylene Particles 0.96g/cc - Various Sizes 0.6mm - 2.8mm
Polymer Beads >90% in Particle Size Range >75% Round
[more info...]
Price: $57.75


PE Nanospheres
Product Line: PENS
Polyethylene Nanospheres 200nm-9900nm [more info...]
Price: $157.00-$215.00


Green Polyethylene Microspheres Density 0.98g/cc<br>Translucent Green Spherical Polymer Microbeads
Product Line: GPMS-0.98
Green Polyethylene Microspheres Density 0.98g/cc
Translucent Green Spherical Polymer Microbeads
[more info...]
Price: $103.95-$372.75


Phosphorescent Yellow-Green Polyethylene Microspheres Density 1.14g/cc<br>Glow In the Dark Yellow-Green Response (470nm-600nm) - Long After-Glow
Product Line: PHYGPMS-1.14
Phosphorescent Yellow-Green Polyethylene Microspheres Density 1.14g/cc
Glow In the Dark Yellow-Green Response (470nm-600nm) - Long After-Glow
[more info...]
Price: $103.95-$298.50


Violet Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Purple MicroBead Particles for Flow Visualization and PIV
Product Line: VIOPMS-1.00
Violet Polyethylene Microspheres Density 1.00g/cc
Spherical Bright Purple MicroBead Polymer Particles for Flow Visualization and PIV
[more info...]
Price: $103.95-$215.00


Rhodamine B Polyethylene Microspheres Density 0.98g/cc - Peak Excitation Wavelength: -540nm (Green)<br>Emission Wavelength: Weak Orange response -595nm - Daylight Color: Pinkish Red
Product Line: RHBPMS-0.98
Rhodamine B Polyethylene Microspheres Density 0.98g/cc - Peak Excitation Wavelength: ~540nm (Green)
Emission Wavelength: Weak Orange Response ~595nm - Daylight Color: Pinkish Red
[more info...]
Price: $103.95-$298.50


Yellow Polyethylene Microspheres Density 1.00g/cc<br>Spherical Bright Yellow Particles for Flow Visualization and PIV
Product Line: YPMS-1.00
Yellow Polyethylene Microspheres Density 1.00g/cc
Spherical Bright Yellow Particles for Flow Visualization and PIV
[more info...]
Price: $131.25-$448.50


UV Fluorescent Microspheres - Yellow in Daylight, Blue-Green in UV Light 0.98g/cc - Bright Fluorescent Polymer Beads, Particles
Product Line: UVBGPMS-0.98
UV Fluorescent Microspheres - Yellow in Daylight, Blue-Green in UV Light 0.98g/cc
Bright Fluorescent Polymer Beads, Particles
[more info...]
Price: $103.95-$157.00


Products 1-47 of 47

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About the Company:

Cospheric is a global leader in manufacturing and distribution of precision nanospheres, microspheres, and larger precision spherical particles. Scientists and engineers worldwide rely on us as a proven source to fulfill their needs for microparticles in narrow size ranges, wide selection of colors, densities, properties and formulations. We leverage our extensive technical expertise in micropowders to help each customer find an optimal microparticle solution for their needs. We ship worldwide daily out of our Santa Barbara, CA manufacturing facility.
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