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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