Bauspot GB22 Glass Bubbles are manufactured by 3M™  and most particularly are engineered hollow glass microspheres made from water-resistant and chemically-stable soda-lime borosilicate glass. Additionally, they are non-combustible and non-porous, so they do not absorb resin; and their low alkalinity makes them compatible with most resins while providing a stable viscosity and a long shelf life.

These low density particles are used for many demanding applications across a wide range of industries to provide temperature and pressure resistance, reduce part weight, lower costs and enhance overall product properties. For these reasons, they are a superior alternative to many conventional fillers and additives such as silica, calcium carbonate, talc and clay.

Technical details

• Capabilities:                     Chemical Resistance, Lightweighting, Temperature Resistance
• Color (unaided eye):       White, powdery
• Composition:                    Soda-lime-borosilicate Glass
• Crush Strength:               400
• Density (g/cc):                 0.22
• Strength (MPa):               2.7