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3M™ Glass Bubbles K20, Small box (60 lb, 27 kg)

3M ID  70070429561    UPC#  00021200864230    3M Product Number  86423    CAT#  K20     
Glass Bubbles
Glass Bubbles
3M(TM) Glass Bubbles K20
3M™ Glass Bubbles K20 have a density of 0.2 g/cc and an isostatic crush strength of 500 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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    Like all 3M glass bubbles, K20 bubbles are compatible with thermoset resins like polyurethane and epoxy, and are virtually insoluble in water.


    CapabilitiesChemical Resistance, Lightweighting, Temperature Resistance
    Color (unaided eye)White, powdery
    CompositionSoda-lime-borosilicate glass
    Crush Strength (PSI)500
    Density (g/cc)0.2
    Industry - UseOil and Gas, Paints and Coatings, Transportation
    Particle Size (D50 Micron)55
    Particle Size Range (D50 Micron)50 - 59
    ShapeHollow spheres with thin walls
    Sizes AvailableSmall Box (60 lb, 27 kg)
    Strength (MPa)3.4