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3M™ Glass Bubbles K37

Glass Bubbles
Glass Bubbles
3M(TM) Glass Bubbles K37
K37 glass bubbles have a density of 0.37 g/cc and an isostatic crush strength of 3000 psi. The general purpose K Series glass bubbles are the most economical 3M glass bubbles.
  • 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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Typical Properties

 Capabilities‎ Increased Production Throughput‎ ,  Temperature Resistance‎ ,  Lightweighting‎ ,  Chemical Resistance‎
 Color (unaided eye)‎ White, powdery‎
 Composition‎ Soda-lime-borosilicate glass‎
 Crush Strength (PSI)‎ 3,000‎
 Density (g/cc)‎ 0.37‎
 Industries‎ Paints and Coatings‎ ,  Transportation‎ ,  Rubber and Plastic‎ ,  Compounding‎ ,  Mining‎
 Particle Size (D50 Micron)‎ 45‎
 Particle Size Range (D50 Micron)‎ 40 - 49‎
 Shape‎ Hollow spheres with thin walls‎
 Sizes Available‎ 4 ft Bag (630 lb, 300 kg)‎ ,  Small Box (10 lb, 4.5 kg)‎ ,  Large Box (630 lb, 300 kg)‎ ,  1 Gallon Container (1.5 lb, 0.6 kg)‎ ,  Small Box (100 lb, 45.4 kg)‎
 Strength (MPa)‎ 20.6‎