Hollow glass microspheres with a high strength to density ratio. Lightweight but with a strength for processing survival. Potential enhancements include high filler loading, reduced warpage/shrinkage, sandability and more.
3M glass bubbles offer a variety of benefits to light weight, high-build elastomeric roof coatings, anti-condensation coatings. With their low density and high strength makes them ideal polymer additives for automotive, truck and aerospace components.
Average particle sizes range from 17 to 65 microns, and s.g. 0.6 to 0.12.