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

3M ID  70070429561    UPC#  00021200864230    CAT#  K20     
Glass Bubbles
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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    Overview

    Like all 3M glass bubbles, K20 bubbles are compatible with thermoset resins like polyurethane and epoxy, and are virtually insoluble in water.

    Specifications

    Capabilities Chemical Resistance, Lightweighting, Temperature Resistance
    Color (unaided eye) White, powdery
    Composition Soda-lime-borosilicate glass
    Crush Strength (PSI) 500
    Density (g/cc) 0.2
    Industry - Use Oil and Gas, Paints and Coatings, Transportation
    Particle Size Range (D50 Micron) 50 - 59
    Particle Size (D50 Micron) 55
    Shape Hollow spheres with thin walls
    Sizes Available Small Box (60 lb, 27 kg)
    Strength (MPa) 3.4