• Our products


Cenospheres on a dark backgroundFRILITE W-Series are Cenospheres with high Al2O3 content between 30 and 40 % and Fe2O3 contents of typically lower than 2%, which over all leads to an outstanding temperature resistance of over 1400 °C and they can be easily recognized by their white to off-white color.

Cenospheres are lightweight, inert, hollow spheres consisting largely of silica and alumina and are filled gas, typically occuring as a byproduct of coal combustion at thermal power plants and carefully collected after separation from the common fly ash.

With our integrated raw material sourcing, production processes and logistics we can ensure highest quality standards throughout the whole supply chain.

FRILITE W-Series are available in sub grades between 5 and 500 microns and a bulk density of about 400 kg/m³, specific gravity typically reaching from 0,7 to 0,85 g/cm³ and featuring 90% survival rates at > 3000 psi.

Because of their high temperature resistance and bright color FRILITE W-Series are especially suited to be used as filler in following applications:

  • Foundry and Refractory
  • Paints and Coatings


For more information on our FRILITE W-Series, packaging or delivery options, feel free to contact us clicking This email address is being protected from spambots. You need JavaScript enabled to view it..


Frilite SA

C.F.L. Lohnerstrasse 22

3645 Thun (Gwatt), CH

+41 79 155 25 64


What we have

20 years experience with microspheres throughout the whole supply chain: raw material sourcing, microsphere processing, ...


Latest News

FRILITE wishes you and your loved ones to stay safe and healthy during this challanging time!

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. Moore Information