The Omyasphere® 300 series is a lightweight filler (LWF) based on closed-cell expanded perlite, with a very low density and fine size providing important benefits in synthetic/ cultured marble.
It has a much lower density than other mineral fillers which means, a substitution by weight of mineral filler with Omyasphere® 300 will lead to an overall weight reduction while keeping the same volume. The other benefits include lower transportation cost, higher yield, easy handling etc.
Download the technical paper for the formulations using these closed-cell perlite fillers.