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Cospheric Microspheres 









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 , Solid 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:

Solid Glass Microspheres:: Borosilicate and Soda Lime from 1um to 150um
Silver Coated Conductive Hollow Glass Microspheres: 0.78g/cc & 0.49g/cc, 5um to 75um
Rhodamine B - Fluorescent Polyethylene Microspheres:  From 10um to 1000um (1mm)

Red Polyethylene Microspheres:  From 10um to 1000um (1mm)
 
R&D vials ship in 1-3 business days.


Fluorescent Microspheres Polyethylene (Fluorescent Yellow in daylight, Yellow in UV) 20um to 1000 micron Diameter Fluorescent Microspheres Polyethylene (Rhodamine B - Orange Emission - Green Excitation) 10-1000um Coated Spheres. Black and White Hemispherically Coated Spheres (Bi-Chromal)
Fluorescent Microspheres - Yellow under Daylight & UV Light - R&D Vials
Fluorescent Microspheres - Rhodamine B - Orange Emission - Green Excitation - R&D Samples
Black and White Bichromal Microspheres
20um-1000um (1mm), Fluorescent yellow microspheres show yellow luminescence under black light.  Designed for water suspension Rhodamine B fluorescent microspheres appear pink in daylight and show orange emission with green excitation. Hemispherical black color coating (half-shell) applied to opaque white microspheres.
Red Fluorescent Microspheres. Red Fluorescent Spheres. UV fluorescent RED polymer microspheres 1um - 5um. Paramagnetic Black Microspheres. Silver Coated Hollow Glass Conductive Microspheres 5um-30um
Red UV Fluorescent Microspheres 1um-5um (500mg)
Price (500mg) $197.00
Opaque Black Magnetic Microspheres - R&D Samples
Conductive Silver Metal Coated Hollow Glass Microspheres 5um-30um - 10ml
Price: $99.00
UV fluorescent RED polymer microspheres 1micron - 5micron. Black, magnetic, highly opaque polyethylene microspheres (10um to 1180um) ready to ship. Highly electrically conductive microspheres.  Our Metal Coated (Silver) Microspheres Density of 0.72g/cc offer 45dB of EMI shielding at 20% loading
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:

 
Color Microspheres

Fluorescent Spheres

Custom Microspheres
Clear Polymer (PE)
Clear - Yellow-Green Spheres
Hemispherically-coated Spheres
(Half-shells)
White Polymer (PE)
Yellow - Blue-Green Spheres
Color-matched Microparticles
Black Paramagnetic PE
Red Fluorescent Spheres 1-5umConductive Microspheres
(Static Dissipative)
Yellow Polyethylene (PE)
Orange Fluorescent Spheres 1-5umGlass Bubbles
Pink (Magenta) Polymer (PE)
Yellow Fluorescent Spheres 1-5umPMMA Microspheres
Purple (Violet) Polymer (PE)
Blue Fluorescent Spheres 1-5umDensity of 1g/cc Microspheres
Grey Polyethylene (PE)
Green Fluorescent Spheres 1-5umSolid Glass Microspheres
Orange Polyethylene (PE)
Rhodamine B Microspheres

Blue Polymer (PE)


Green Polymer (PE)























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.

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.

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.

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?