3M™ Glass Bubbles K1

  • Decreases density and increases buoyancy to help improve efficiency and may lower material costs
  • Provides buoyancy in syntactic foam compositions
  • Stable voids for low thermal conductivity
  • Versatile use – adaptable to a variety of production processes
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Product Details

3M™ Glass Bubbles K1 are hollow glass microspheres that are ideal for a number of applications including – shallow (e.g. up to 2,000 feet of sea water) water flotation devices and lightweight wall repair compound. These low-cost, economical bubbles have a very low typical density (0.125 g/cc) and an isostatic crush strength of 250 psi.

K1 is the Glass Bubbles grade with the lowest density and designed for a variety of applications where very low density and low thermal conductivity is needed. Typical applications are lighweitght buoyancy modules, wall repair compounds, thermal insulating paints, construction materials, and emusion explosives.

  • Decreases density and increases buoyancy to help improve efficiency and may lower material costs
  • Provides buoyancy in syntactic foam compositions
  • Stable voids for low thermal conductivity
  • Versatile use – adaptable to a variety of production processes
  • Easy sanding of lightweight wall repair compounds
  • Temperature resistance
  • Chemical stability and inertness