Cenospheres at Ceno Technologies - USA

Hollow Glass Microspheres

Ceno Technologies microspheres are hollow, thin-walled spheres of glass manufactured with a mean particle size of around 11 and 18 micrometers. Hollow glass microspheres are sometimes also termed microballoons, have diameters ranging from 10 to 300 micrometers.

Hollow glass microspheres are often used as a lightweight filler in composite materials such as syntactic foam and light weight concrete. They give syntactic foam its light weight, low thermal conductivity, and a resistance to compressive stress that far exceeds that of other foams. These properties are exploited in the hulls of submersibles and deep-sea oil drilling equipment, where other types of foam would implode.

Glass Microspheres are also used in composites to fill polymer resins for specific characteristics such as weight, sandability and sealing surfaces. When making large forms such as boat hulls for example, shapers seal the eps foam blanks with epoxy and lightweight microballoons to create an impermeable and easily sanded surface upon which fiberglass laminates are applied.

For bulk purchases of Hollow Glass Microspheres, please visit our “Glass Microspheres” page as indicated opposite.

Microspheres, Nanoparticles & Flecks

Microspheres, Nanoparticles and flecks can be coated with alloysLightweight Microspheres in the 11-18 micron range, even smaller flecks of Aluminium or Mica and even Nanoparticles can be coated with a variety of metals including silver, gold, iridium and palladium. The resultant finishes have all the properties of solid metals and have a larger surface area but are extremely reflective, very lightweight and very cost effective.

When added to paints, adhesives, sealers, plastic and resin materials at appropriate ratios, these coated cenospheres, microspheres, nanoparticles, aluminium or mica fleck materials can then provide electrical conductivity and shielding of electronic devices against Electro Magnetic Interference (EMI). The low particle density and large surface area facilitates slow phase separation in paints and adhesives compared to heavy metallic and inorganic fillers.


Silver Coated Microspheres

Microspheres - silver coated

Our proprietary and patented process allows us to deposit precisely controlled amounts of sliver (and other metals including gold, palladium, iridium, etc.) onto lightweight hollow glass microspheres, thus producing highly reflective materials with the conductivity of the precious metals but without the high cost or weight. Further research has resulted in materials which can absorb electromagnetic energy instead of simply reflecting it. Please contact us directly for further details and recommendations.

Ceno Technologies Microspheres coated with silver, gold and other Alloys are lightweight, highly reflective, inexpensive and can be easily customized to the specific requirements of the customer.

From water or solvent based paints, caulks, tapes, fabric, sheets, plastics and metals, Ceno Technologies microspheres have proven their effectiveness in a myriad or environments and applications throughout the World.

High performance, microspheres and extremely reflective, lightweight, low cost conductive EMI shielding materials are available today!