Glass bead

grinding

Hollow glass beads made of borosilicate glass as filler/filling beads Hollow glass beads are thin-walled micro-borosilicate glass beads. They are chemically very stable, have a very low density and high compressive strength. Application Filler in the following materials: Glues Weight reduction; sound absorption; reduced contraction; improved thermal and electrical insulation Finishes Cost reduction; high filling degree with low viscosity; improved flow properties, gloss and processability; higher hardness and abrasion resistance; reduction of UV degradation Injection moulding/extrusion Improved level of detail; cost reduction; improved rigidity; reduced warpage Fillers Weight reduction; cost reduction; sound reduction; reduced contraction; improved thermal and electrical insulation Sealants Weight reduction; cost reduction; sound reduction; reduced contraction; improved thermal and electrical insulation Quality attributes Wide range of available densities in the range ρ = 0.15 – 0.70 g/cm³ High relative compressive strengths in the range βD = 2 – 124 MPa High percentage of undamaged beads (typically) RF ≥ 95 Light, white colour of the powder, colourless individual beads Suitable for food contact Suitability for toy standards Cosmetic suitability High chemical resistance of borosilicate glass