Hollow glass microsphere is not a new technology. All one has to do is go to the internet and Google hollow glass microsphere. Anyone can buy hollow glass microsphere and they have a wide variety of uses.
Hollow glass microsphere are usually between 1 to 100 microns in diameter, although their size can range from 100 nanometers to 5 millimeters in diameter.
Hollow glass microspheres are used as lightweight filler in composite materials such as syntactic foam and lightweight concrete.
This article comes from UNT edit released