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Microspheres:

We carry a large selection of solid polyethylene microspheres (also known as polymer spheres, balls, beads, microbeads, and microparticles) supplied in dry powder form. We have recently added a selection of PMMA microspheres and hollow glass microspheres.
 
Custom color microspheres, magnetic microspheres, positively or negatively charged microspheres, functionalized microspheres, coated microspheres can be produced with short lead times. Please contact us with any questions. We respond to all inquiries within 1 business day.

New Products:
Colored microspheres with specific gravity of 1g/cc
UV Fluorescent microspheres 1um-5um (red, orange, yellow, green, blue)
PMMA microspheres  in sizes of 10-27um, 27-45um and 45-53um
Hollow glass microspheres in sizes 27um to 150um
 
R&D samples ship in 1-3 business days.


Violet Polymer Spheres, Purple Microspheres Samples - Density 1g/cc Pink Polymer Spheres, Pink Microspheres Samples - Density 1g/cc Magnetic Black Microspheres.
Violet Polyethylene Microspheres - Samples (10g)
Pink Polyethylene Microspheres - Samples (10g)
Opaque Black Magnetic Microspheres - R&D Samples
Highly opaque purple polyethylene microspheres. Density: 0.99g/cc-1.01g/cc - designed to match the density of water for optimal suspension of particles. Highly opaque pink polyethylene microspheres. Density: 0.99g/cc-1.01g/cc - designed to match the density of water for optimal suspension of particles. Magnetic, highly opaque polyethylene microspheres (10um to 1180um) ready to ship.
Orange Fluorescent Microspheres. Orange Fluorescent Spheres. UV fluorescent Orange polymer microspheres 1um - 5um. Orange Microspheres Samples - density 1g/cc Green Fluorescent Microspheres. Green Fluorescent Spheres. UV fluorescent Green polymer microspheres 1um - 5um.
Orange UV Fluorescent Microspheres 1um-5um (500mg)
Price (500mg) $197.00 		Orange Polyethylene Microspheres - Samples (10g)
Green UV Fluorescent Microspheres 1um-5um (500mg)
Price (500mg) $197.00
UV fluorescent ORANGE polymer microspheres 1micron - 5micron. Highly opaque orange polyethylene microspheres. Density: 0.99g/cc-1.01g/cc - designed to match the density of water for optimal suspension of particles. UV fluorescent GREEN polymer microspheres 1micron - 5micron.
Yellow Microspheres Polyethylene 10-1000um (1mm) Bi-chromal Polyethylene Microspheres Fluorescent Microspheres Polyethylene 10-1000um
Yellow Microspheres - Samples (10g)
Bi-chromal Microspheres (Custom Color)
UV Fluorescent Microspheres - Yellow-Green in UV Light - R&D Samples
Yellow polyethylene microspheres. Density 1g/cc for water suspension. High quality, smooth, spherical solid polyethylene yellow microspheres. Precision hemispherical color coating (half-shell) can be applied to microspheres of your choice (black, red, green, yellow, blue, grey, custom). Invisible (clear) microspheres fluoresce yellow-green under UV light.
Opaque Grey Polymer Microspheres White Microspheres Polyethylene 10-1000um (1mm) Opaque Blue Polymer Microspheres
Opaque Grey Polymer Microspheres - Samples (10g)
Opaque White Microspheres - R&D Samples
Opaque Blue Polymer Microspheres - Samples (10g)
Grey polymer microspheres. Density 1g/cc for suspension in water. Samples from 10um to 1180um ready to ship. 100% opacity for maximum hiding power. Dry solid white spheres 10 micron - 1mm. Blue polymer spheres, density of 1 g/cc for water suspension. Samples from 10um to 1180um ready to ship.
Red Fluorescent Microspheres. Red Fluorescent Spheres. UV fluorescent RED polymer microspheres 1um - 5um. Clear Microspheres Polyethylene 10-1000um (1mm) Green Microspheres Polyethylene 10-1000um (1mm)
Red UV Fluorescent Microspheres 1um-5um (500mg)
Price (500mg) $197.00 		Clear Polyethylene Microspheres - R&D Samples
Green Polyethylene Microspheres - Samples (10g)
UV fluorescent RED polymer microspheres 1micron - 5micron. Clear polyethylene spheres with no pigments or additives (10um to 1180um) in stock. Green polyethylene microspheres. High quality, smooth, spherical solid polyethylene translucent green microspheres.
Blue Fluorescent Microspheres. Blue Fluorescent Spheres. UV fluorescent Blue polymer microspheres 1um - 5um. Yellow Fluorescent Microspheres. Yellow Fluorescent Spheres. UV fluorescent Yellow polymer microspheres 1um - 5um. Fluorescent Microspheres Polyethylene (Fluorescent Yellow in daylight, Blue-Green in UV) 10-1000um
Blue UV Fluorescent Microspheres 1um-5um (500mg)
Price (500mg) $197.00 		Yellow UV Fluorescent Microspheres 1um-5um (500mg)
Price (500mg) $197.00 		Fluorescent Microspheres - Blue Green under UV Light - R&D Samples
UV fluorescent BLUE polymer microspheres 1micron - 5micron. UV fluorescent YELLOW polymer microspheres 1micron - 5micron. Fluorescent yellow microspheres show blue-green luminescence under 365nm black light.
Core Technologies:

Cospheric specializes in developing and manufacturing custom microtechnology solutions. We partner with innovative companies worldwide to add value and competitive advantage to their products through our unique expertise in microspheres, microcoatings, and microreplicated structures.

We have extensive experience in adhesives, laminations, encapsulation, solvent-resistance and environmental stability. We can design a complete system to your specifications.


Microspheres and Coatings:

 
Colored Microspheres

UV Fluorescent Spheres

Custom Microspheres
Clear MicrospheresClear - Yellow-Green Spheres
Hemispherically-coated Spheres
(Half-shells)
White MicrospheresYellow - Blue-Green Spheres
Color-matched Microspheres
Black Microspheres
(Magnetic Microspheres)		Red Fluorescent Spheres 1-5um
Conductive Microspheres
(Static Dissipative)
Yellow MicrospheresOrange Fluorescent Spheres 1-5umGlass Microspheres
Pink (Magenta) Microspheres
Yellow Fluorescent Spheres 1-5umPMMA Microspheres
Purple (Violet) Microspheres
Blue Fluorescent Spheres 1-5umDensity of 1g/cc Microspheres
Grey Microspheres
Green Fluorescent Spheres 1-5um
Orange Microspheres


Blue Microspheres


Green Microspheres





























Microstructures and System Design:

High-aspect ratio microstructures
High aspect ratio microreplications
Aspect ratios of 5:1 and ~250K features per square inch for large areas.
Aspect ratios greater than 10:1 on smaller scale samples.

Technical Articles:

Electrostatic Charge on Microspheres: Measurement Techniques
Electrostatic charge (also known as triboelectric charge) on microparticles and microspheres have been of interest to scientists in chemical, pharmaceutical, cosmetic, drug delivery, displays industries. Until recently there were no reliable techniques to measure or quantify electrostatic charge on microparticles. read more

Opaque Polyethylene Microspheres: Applications in Cosmetics and Skin Care
Unique advantage of opaque microspheres in cosmetics is that maximum hiding power is achieved with one invisible and feather-light layer - revolutionizing make-up products. read more

Orientation of Dual-Functionalized Microspheres in Electromagnetic Field
One particularly interesting and unique feature of these miracle microspheres is their ability to orient themselves in response to electromagnetic field and show a visual response. This is achieved by making spheres both bipolar and bichromal, with dipole precisely aligned with two differently colored hemispheres. read more

Polyethylene Microspheres vs. Glass Microspheres - Properties, Advantages and Applications
With advances in microsphere manufacturing processes, polymer spheres and glass microspheres are available in comparable grades, particle sizes and prices. Which microsphere material is right for your application? read more