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3M™ Glass Bubbles K46

 
Glass Bubbles
Glass Bubbles
3M(TM) Glass Bubbles K46
3M(TM) Glass Bubbles K46 125 lb. Box
3M™ Glass Bubbles K46 have a density of 0.46 g/cc and an isostatic crush strength of 6000 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

With an isostatic strength of 6000 psi, 3M K46 glass bubbles can be effectively used in ultra-deep water. They produce strong stable voids with low thermal conductivity, helping the coating achieve necessary compressive strength and insulation. Like all 3M glass bubbles, K46 glass bubbles are virtually insoluble in water or oil providing better utility in underwater applications.

Typical Properties

CapabilitiesIncreased Production Throughput, Lightweighting, Temperature Resistance, Chemical Resistance
Color (unaided eye)White, powdery
CompositionSoda-lime-borosilicate glass
Crush Strength (PSI)6,000
Density (g/cc)0.46
IndustriesPaints and Coatings, Rubber and Plastic, Insulation and Buoyancy, Transportation
Particle Size (D50 Micron)40
Particle Size Range (D50 Micron)40 - 49
ShapeHollow spheres with thin walls
Sizes AvailableSmall Box (10 lb, 4.5 kg), 4 ft Bag (825 lb, 374.2 kg), Large Box (125 lb, 56.6 kg), Large Box (785 lb, 356 kg), 1 Gallon Container (2 lb, 0.9 kg)
Strength (MPa)41.3