Microspheres - Cospheric develops and manufactures microspheres (spheres, balls, beads, microbeads, microparticles). Polyethylene, polymethyl methacrylate (acrylic), solid and hollow glass, custom color, magnetic, positively or negatively charged microspheres, functionalized microspheres, coated microspheres are in stock and ready to ship. Custom microspheres can be manufactured on demand.

Microtechnology Solutions
- Cospheric also develops custom microtechnology solutions through 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.

We respond to all inquiries within 1 business day. Small quantity orders ship in 1-2 business days.



Polyethylene Spheres

Polyethylene Spheres - Plastic Spheres - Polymer Microspheres

PMMA Spheres

PMMA polymethylmethacrylate spheres - microspheres - acrylic

Glass Spheres

Glass Microspheres - Glass Spheres - Solid and Hollow

Coated Glass Spheres

Titanium Oxide Glass Spheres

Colored Spheres

Colored PE Spheres - Polyethylene Microspheres - Colored Plastic Balls Beads

Fluorescent Spheres

Fluorescent Polymer Spheres - UV Microspheres - Luminescent

Neutrally-Buoyant

Neutrally Buoyant in Water Spheres - Specific Gravity - Density 1g/cc Microspheres

Half-Coated Spheres

Half-coated Spheres - Shells - Hemispherical Coating on Microspheres

New Products:


Silver Coated Solid Glass Spacers

Silver Microspheres


Conductive Silver Coated Glass
Core: Solid Soda Lime Glass
Coating: Continuous Silver
Sizing: 5-110um in Narrow Ranges

Fluorescent Red Microbeads

Fluorescent Red Spheres Microspheres


Fluorescent Microbeads
Excitation Wavelength:  365nm Peak
Emission Wavelength:
  Red
Daylight Color:
Bright Fluorescent Red