Expanded glass granulate is produced by taking a silica flour base, forming it into a raw ‘green grain’ through a wet process, then drying and expanding it in a rotary kiln. The result is a lightweight, closed-cell silicon dioxide particle – inert, dimensionally stable, and built for construction applications that demand performance without excess weight.

It is not foam glass. While both share a similar silica base, expanded glass uses a fundamentally different kiln process that gives it tighter particle size control and superior workability characteristics.