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3M™ Glass Bubbles K37, 50 kg/SM Case

3M Product Number K373M ID FS910004415
  • Lower viscosity, improved flow
  • Increased filler loading, reduced cost
  • VOC reduction
  • Chemical stability and inertness
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Product Details

3M™ Glass Bubbles K37 glass bubbles have a density of 0.37 g/cc and an isostatic crush strength of 3000 psi.

Strength-to-Weight Ratio
The benefits don’t end there; although these hollow spheres have thin walls, they have an isostatic crush strength of 3,000 psi making them suitable for a number of applications. In addition to paints and coatings, these bubbles may be used for compounding, rubber and plastic applications. K37 bubbles have a fractional survival rate of 80% or more, at 3,000 psi for consistent performance and greater survivability. This is especially important in the production of plastic and rubber parts, so you can reduce the weight of finished parts without compromising the strength and mechanical integrity.

The unique spherical shape of these bubbles offers a number of additional benefits, including: higher filler loading, lower viscosity/improved flow and reduced shrinkage and warpage. Higher filler loading offers the potential for lower costs. Adding to this product’s versatility is its ability to be easily blended into compounds – making it adaptable to a variety of production processes including spraying, casting and molding. Like all of our products, we have gone through painstaking effort to develop 3M™ Glass Bubbles K37, to go above and beyond user requirements. When it comes to finding a durable, reliable additive for paints and coatings, turn to 3M – a company that has been developing glass bubble technology for over 40 years.

Typical Applications

  • Paints and coatings
  • Compounding
  • Emulsion explosives
  • Transportation
  • High build coatings for sag resistance
  • High temperature insulation coatings

  • Lower viscosity, improved flow
  • Increased filler loading, reduced cost
  • VOC reduction
  • Chemical stability and inertness
  • Reduced dielectric constant
  • Lightweight filler adds durability and scrub resistance to paint formulations
Specifications
Attribute Name
Value
Capabilities
Chemical Resistance, Increased Production Throughput, Lightweighting, Temperature Resistance
Color (unaided eye)
White, powdery
Composition
Soda-lime-borosilicate glass
Density (g/cc)
0,37
Density Range (g/cm3)
0.30 - 0.39
Industries
Construction, Mining, Paints and Coatings
Net Weight (Metric)
50 kg
Particle Size (D50 Micron)
45
Particle Size Range (D50 Micron)
40 - 49, 40 - 49, 40 - 49
Strength (MPa)
20.6
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