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3M™ Glass Bubbles K20

3M Product Number K203M ID HC000624078
  • Lower viscosity, improved flow
  • Increased filler loading, reduced cost
  • VOC reduction
  • good strength-to-density ratio
 More...
Product Details

3M™ Glass Bubbles K20 have a density of 0.2 g/cc and an isostatic crush strength of 500 psi.

3M glass bubbles K20 are used extensively in shallow water buoyancy applications. Their low density (0.20 g/cc) provides reliable buoyancy, and their high isostatic strength makes them an ideal choice when processing or buoy depth requires more strength. And, like all 3M glass bubbles, K20 bubbles are compatible with thermoset resins like polyurethane and epoxy, and are virtually insoluble in water.

  • Lower viscosity, improved flow
  • Increased filler loading, reduced cost
  • VOC reduction
  • good strength-to-density ratio
  • Reduced dielectric constant
  • Temperature resistance
  • Chemical stability and inertness
Specifications
Capabilities
Chemical Resistance, Lightweighting, Temperature Resistance
Color (unaided eye)
White, powdery
Composition
Soda-lime-borosilicate glass
Density (g/cc)
0,2
Density Range (g/cc)
0.20 - 0.29
Industries
Paints and Coatings, Transportation
Median Particle Diameter
60
Net Weight (Metric)
27 kg
Particle Size Range (D50 Micron)
60 - 69, 60 - 69, 60 - 69
Shape
Hollow spheres with thin walls
Strength (MPa)
3.4
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