3M™ Glass Bubbles K46

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  • Made from hollow, water-resistant, and chemically-stable soda-lime-borosilicate glass
  • Each bubble has a crush strength of 6,000 psi (41.37 MPa) and a density of 0.46 g/cc
  • Good strength-to-density ratio
  • Offers excellent water and oil resistance for underwater applications
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Specifications
Applications
Insulation
Brand
3M™
Capabilities
Chemical Resistance, Increased Production Throughput, Lightweighting, Temperature Resistance
Colour (unaided eye)
White, powdery
Colour Family
White
Composition
Soda-lime-borosilicate Glass
Crush Strength
6,000
Crush Strength (Metric)
41.37 MPa
Density
0.46 g/cm³
Density Range (g/cc)
0.40 - 0.49
Industries
Construction, Paints and Coatings, Rubber and Plastic, Transportation
Manufacturing Segment
Exterior, Glass, Interior
Net Weight (Imperial)
125 lb, 2 lb
Net Weight (Metric)
0.9 kg, 56.7 kg
Particle Size Range (D50 Micron)
40 - 49, 40 - 49, 40 - 49
Product Category
Glass Bubbles
Product Colour
White
Strength (MPa)
41.3
Details
  • Made from hollow, water-resistant, and chemically-stable soda-lime-borosilicate glass
  • Each bubble has a crush strength of 6,000 psi (41.37 MPa) and a density of 0.46 g/cc
  • Good strength-to-density ratio
  • Offers excellent water and oil resistance for underwater applications
  • Provides buoyancy in syntactic foam compositions
  • Creates stable voids for low thermal conductivity and a reduced dielectric constant
  • Low density

3M™ Glass Bubbles K Series are specially formulated for a high strength-to-weight ratio. This makeup allows for enhanced survivability under demanding processing conditions like injection molding. They are also engineered to produce stable voids, which help result in low thermal conductivity and a low dielectric constant. Help improve strength and performance with 3M™ Glass Bubbles K Series.

3M™ Glass Bubbles are hollow, water-resistant, and chemically-stable soda-lime-borosilicate glass microspheres that are engineered to serve as an alternative to conventional fillers and additives like silica, calcium carbonate, talc, and clay. These low-density particles are used in a wide range of industries to help reduce part weight, lower costs, and enhance product properties. Because of their unique spherical shape, they also offer a number of important benefits, including higher filler-loading, lower viscosity/improved flow, and reduce shrinkage/warpage. Discover how 3M™ Glass Bubbles can be mixed in with a variety of compounds to be sprayed, cast, and/or moulded with incredible results.

Suggested Applications

  • Adaptable to a variety of production processes, including deep-sea oil and gas projects
  • Use as an alternative to conventional fillers and additives like silica, calcium carbonate, talc, and clay
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