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3M™ Glass Bubbles S38

Glass Bubbles
Glass Bubbles
3M(TM) Glass Bubbles S38 100 lb. Box
3M™ Glass Bubbles S38 have a density of 0.38 g/cc and an isostatic crush strength of 4000 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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The low thermal conductivity of 3M's38 glass bubbles makes them ideal additives in insulation for pipelines and production risers helping to ensure that hot oil continues to flow to the surface, rather than cooling and slowing. High strength (rated to 4000 psi) means they can survive both the rigorous demands of processing and the enormous water pressure at depth. Like all 3M glass bubbles, S38 glass bubbles are virtually insoluble in water or oil.

Typical Properties

 Capabilities‎‎ Temperature Resistance,‎ Lightweighting,‎ Chemical Resistance
 Color (unaided eye)‎‎ White, powdery
 Composition‎‎ Soda-lime-borosilicate glass
 Crush Strength (PSI)‎‎ 4,000
 Density (g/cc)‎‎ 0.38
 Industries‎‎ Paints and Coatings,‎ Insulation and Buoyancy
 Particle Size (D50 Micron)‎‎ 40
 Particle Size Range (D50 Micron)‎‎ 40 - 49
 Shape‎‎ Hollow spheres with thin walls
 Sizes Available‎‎ Bulk Sea Container with Liner,‎ Bulk Trailer,‎ Small Box (10 lb, 4.5 kg),‎ 1 Gallon Container (1.5 lb, 0.6 kg),‎ Small Box (100 lb, 45.4 kg),‎ Large Box (650 lb, 294.8 kg),‎ 4 ft Bag (700 lb, 317.5 kg)
 Strength (MPa)‎‎ 27.5