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3M™ Glass Bubbles S32

Glass Bubbles
Glass Bubbles
3M(TM) Glass Bubbles S32
3M™ Glass Bubbles S32 have a density of 0.32 g/cc and an isostatic crush strength of 2000 psi. The S Series glass bubbles have smaller particle sizes than the K Series.
  • Lower viscosity, improved flow
  • Increased filler loading, reduced cost
  • VOC reduction
  • Chemical stability and inertness
  • Reduced dielectric constant
  • Thermal conductivity reduction
  • Temperature resistance
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Like all 3M glass bubbles, they are virtually insoluble in water or oil.

Typical Properties

CapabilitiesTemperature Resistance, Lightweighting, Chemical Resistance
Color (unaided eye)White, powdery
CompositionSoda-lime-borosilicate glass
Crush Strength (PSI)2,000
Density (g/cc)0.32
IndustriesPaints and Coatings, Insulation and Buoyancy, Mining
Particle Size (D50 Micron)40
Particle Size Range (D50 Micron)40 - 49
ShapeHollow spheres with thin walls
Sizes AvailableLarge Box (550 lb, 249 kg), Bulk Trailer, 1 Gallon Container (1 lb, 0.4 kg), 4 ft Bag (600 lb, 272 kg), Small Box (100 lb, 45.4 kg)
Strength (MPa)13.7