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3M™ Glass Bubbles K25, 380 kg/LG Bag

3M ID FS9100102973M Product Number K25
  • Density reduction
  • Higher filler loading feasible and lower VOC for paints and coatings
  • Chemical stability and inertness
  • Temperature resistance
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Product Details

3M™ Glass Bubbles K25 are hollow microspheres made of soda-lime borosilicate glass with a true density of 0.25 g/cm³ and an isostatic crush strength of 750 psi / 52 bar.

This general purpose Glass Bubbles grade was designed for use in a variety of applications such as paints and coating, wall plasters, and polyurethane and epoxy systems for tooling boards. Furthermore, it is suggested to be used in intermediate depth (e.g. up to 5,000 feet / 1524 meters of sea water) buoyancy applications, such as drill riser buoyancy models.

  • Density reduction
  • Higher filler loading feasible and lower VOC for paints and coatings
  • Chemical stability and inertness
  • Temperature resistance
  • Thermal conductivity reduction
Specifications
Attribute Name
Value
Capabilities
Chemical Resistance, Lightweighting, Temperature Resistance
Color (unaided eye)
White, powdery
Composition
Soda-lime-borosilicate Glass
Density Range (g/cm3)
0.20 - 0.29
Industries
Construction, Insulation and Buoyancy, Paints and Coatings
Net Weight (Metric)
380 kg
Particle Size (D50 Micron)
55 μm
Particle Size Range (D50 Micron)
50 - 59, 50 - 59, 50 - 59
Shape
Hollow Spheres with Thin Walls
Strength (MPa)
5.1
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