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

Microspheres 10-1000micron (1mm)Microspheres:
Solid polyethylene microspheres supplied in bulk dry powder form.
Order as little as 10g sample or many kilograms.
Clear polyethylene microspheres 10-1000um (1mm).
Opaque white polyethylene microspheres 10-106um.
Custom color, magnetic, charged, functionalized, coated microspheres available.

 Coated microspheres
Coated Microspheres:
Precision thin functional coatings on microspheres of your choice.
Coatings can be as thin as 1 micron with tolerances of 0.25micron.
Add additional functionality, bipolarity or bichromality to each sphere.
Supplied in solution or in dry form.




High Aspect Ratio MicrostructuresMicrostructures:
Custom high-aspect ratio microstructure design, proof-of-concept and transfer to production microreplication process.
Aspect ratios of 5:1 and ~250K features per square inch for large areas.
High aspect ratio microreplications of greater than 10:1 on smaller scale samples.






Microtechnology System DesignMicrotechnology System Design:
We have extensive experience in microspheres, microstructures, and microcoatings as well as adhesives, laminations, encapsulation, solvent-resistance and environmental stability. We can design a complete system to your specifications.  We enjoy technical challenges and welcome unique and unconventional  projects.


Contact us to discuss your application and requirements.




Featured Products:


White Polyethylene Microspheres Microstructures (Custom Geometry)
White Microspheres Polyethylene 10-1000um (1mm) High aspect ratio microembossing microstructures
Proprietary mix of polyethylene and Ti02 achieves 100% opacity for maximum hiding power. Other colors available by request. High aspect ratio precision microstructured geometries in a variety of polymer films.
Clear Polyethylene Microspheres Bi-chromal Microspheres (Custom Color)
Clear Microspheres Polyethylene 10-1000um (1mm) Bi-chromal Polyethylene Microspheres
Clear polyethylene spheres with no pigments or additives. Wide range of particle sizes in stock. Precision color coating can be applied to any microspheres of your choice. Available in many colors (e.g. black, red, green, yellow, blue, grey, pink)


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 and other industries for many years. 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. Sphericity and particle size uniformity are responsible for the ball-bearing effect in creams and lotions resulting in luxury feel and silky texture. Exceptional smoothness of spherical microparticles dramatically enhances the tactile experience of a cosmetic product. 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