Perlite microsphere fillers are used to reduce weight (lightweight) of rotationally molded or cast polyester, polyurethane, and epoxy resin products.

We provide the most cost-effective materials to reduce weight from: cultured marble, picture frames, bowling ball cores, putties and architectural and decorative pieces.

For ceramic microspheres (cenospheres), please visit Cenostar at:  http://www.cenostar.com